Remove _has_gym checks

.dockerignore

@@ -1,142 +0,0 @@
-# Misc
-.git
-tmp
-wandb
-data
-outputs
-.vscode
-rl
-media
-
-
-# Logging
-logs
-
-# HPC
-nautilus/*.yaml
-*.key
-
-# Slurm
-sbatch*.sh
-
-# Byte-compiled / optimized / DLL files
-__pycache__/
-*.py[cod]
-*$py.class
-
-# C extensions
-*.so
-
-# Distribution / packaging
-.Python
-build/
-develop-eggs/
-dist/
-downloads/
-eggs/
-.eggs/
-lib/
-lib64/
-parts/
-sdist/
-var/
-wheels/
-pip-wheel-metadata/
-share/python-wheels/
-*.egg-info/
-.installed.cfg
-*.egg
-MANIFEST
-
-# PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
-*.manifest
-*.spec
-
-# Installer logs
-pip-log.txt
-pip-delete-this-directory.txt
-
-# Unit test / coverage reports
-!tests/data
-htmlcov/
-.tox/
-.nox/
-.coverage
-.coverage.*
-.cache
-nosetests.xml
-coverage.xml
-*.cover
-*.py,cover
-.hypothesis/
-.pytest_cache/
-
-# Translations
-*.mo
-*.pot
-
-# Django stuff:
-*.log
-local_settings.py
-db.sqlite3
-db.sqlite3-journal
-
-# Flask stuff:
-instance/
-.webassets-cache
-
-# Scrapy stuff:
-.scrapy
-
-# Sphinx documentation
-docs/_build/
-
-# PyBuilder
-target/
-
-# Jupyter Notebook
-.ipynb_checkpoints
-
-# IPython
-profile_default/
-ipython_config.py
-
-# pyenv
-.python-version
-
-# pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
-
-# PEP 582; used by e.g. github.com/David-OConnor/pyflow
-__pypackages__/
-
-# Celery stuff
-celerybeat-schedule
-celerybeat.pid
-
-# SageMath parsed files
-*.sage.py
-
-# Spyder project settings
-.spyderproject
-.spyproject
-
-# Rope project settings
-.ropeproject
-
-# mkdocs documentation
-/site
-
-# mypy
-.mypy_cache/
-.dmypy.json
-dmypy.json
-
-# Pyre type checker
-.pyre/

.gitattributes

@@ -1,6 +1,2 @@
 *.memmap filter=lfs diff=lfs merge=lfs -text
 *.stl filter=lfs diff=lfs merge=lfs -text
-*.safetensors filter=lfs diff=lfs merge=lfs -text
-*.mp4 filter=lfs diff=lfs merge=lfs -text
-*.arrow filter=lfs diff=lfs merge=lfs -text
-*.json filter=lfs diff=lfs merge=lfs -text

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -1,54 +0,0 @@
-name: "\U0001F41B Bug Report"
-description: Submit a bug report to help us improve LeRobot
-body:
-  - type: markdown
-    attributes:
-      value: |
-        Thanks for taking the time to submit a bug report! 🐛
-        If this is not a bug related to the LeRobot library directly, but instead a general question about your code or the library specifically please use our [discord](https://discord.gg/s3KuuzsPFb).
-
-  - type: textarea
-    id: system-info
-    attributes:
-      label: System Info
-      description: If needed, you can share your lerobot configuration with us by running `python -m lerobot.scripts.display_sys_info` and copy-pasting its outputs below
-      render: Shell
-      placeholder: lerobot version, OS, python version, numpy version, torch version, and lerobot's configuration
-    validations:
-      required: true
-
-  - type: checkboxes
-    id: information-scripts-examples
-    attributes:
-      label: Information
-      description: 'The problem arises when using:'
-      options:
-        - label: "One of the scripts in the examples/ folder of LeRobot"
-        - label: "My own task or dataset (give details below)"
-
-  - type: textarea
-    id: reproduction
-    validations:
-      required: true
-    attributes:
-      label: Reproduction
-      description: |
-        If needed, provide a simple code sample that reproduces the problem you ran into. It can be a Colab link or just a code snippet.
-        Sharing error messages or stack traces could be useful as well!
-        Important! Use code tags to correctly format your code. See https://help.github.com/en/github/writing-on-github/creating-and-highlighting-code-blocks#syntax-highlighting
-        Try to avoid screenshots, as they are hard to read and don't allow copy-and-pasting.
-
-      placeholder: |
-        Steps to reproduce the behavior:
-
-          1.
-          2.
-          3.
-
-  - type: textarea
-    id: expected-behavior
-    validations:
-      required: true
-    attributes:
-      label: Expected behavior
-      description: "A clear and concise description of what you would expect to happen."

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,34 +0,0 @@
-## What this does
-Explain what this PR does. Feel free to tag your PR with the appropriate label(s).
-
-Examples:
-|  Title               | Label           |
-|----------------------|-----------------|
-| Fixes #[issue]       | (🐛 Bug)        |
-| Adds new dataset     | (🗃️ Dataset)    |
-| Optimizes something  | (⚡️ Performance) |
-
-## How it was tested
-Explain/show how you tested your changes.
-
-Examples:
-- Added `test_something` in `tests/test_stuff.py`.
-- Added `new_feature` and checked that training converges with policy X on dataset/environment Y.
-- Optimized `some_function`, it now runs X times faster than previously.
-
-## How to checkout & try? (for the reviewer)
-Provide a simple way for the reviewer to try out your changes.
-
-Examples:
-```bash
-DATA_DIR=tests/data pytest -sx tests/test_stuff.py::test_something
-```
-```bash
-python lerobot/scripts/train.py --some.option=true
-```
-
-## SECTION TO REMOVE BEFORE SUBMITTING YOUR PR
-**Note**: Anyone in the community is free to review the PR once the tests have passed. Feel free to tag
-members/contributors who may be interested in your PR. Try to avoid tagging more than 3 people.
-
-**Note**: Before submitting this PR, please read the [contributor guideline](https://github.com/huggingface/lerobot/blob/main/CONTRIBUTING.md#submitting-a-pull-request-pr).

.github/poetry/cpu/pyproject.toml

@@ -0,0 +1,118 @@
+[tool.poetry]
+name = "lerobot"
+version = "0.1.0"
+description = "🤗 LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch"
+authors = [
+    "Rémi Cadène <re.cadene@gmail.com>",
+]
+maintainers = [
+    "Alexander Soare <alexander.soare159@gmail.com>",
+    "Quentin Gallouédec <quentin.gallouedec@ec-lyon.fr>",
+    "Simon Alibert <alibert.sim@gmail.com>",
+]
+repository = "https://github.com/Cadene/lerobot"
+readme = "README.md"
+license = "Apache-2.0"
+keywords = ["robotics, deep, reinforcement, learning, pytorch"]
+classifiers=[
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "Topic :: Software Development :: Build Tools",
+    "License :: OSI Approved :: Apache Software License",
+    "Programming Language :: Python :: 3.10",
+]
+packages = [{include = "lerobot"}]
+
+
+[tool.poetry.dependencies]
+python = "^3.10"
+termcolor = "^2.4.0"
+omegaconf = "^2.3.0"
+pandas = "^2.2.1"
+wandb = "^0.16.3"
+moviepy = "^1.0.3"
+imageio = {extras = ["pyav"], version = "^2.34.0"}
+gdown = "^5.1.0"
+hydra-core = "^1.3.2"
+einops = "^0.7.0"
+pygame = "^2.5.2"
+pymunk = "^6.6.0"
+zarr = "^2.17.0"
+numba = "^0.59.0"
+mpmath = "^1.3.0"
+torch = {version = "^2.2.1", source = "torch-cpu"}
+tensordict = {git = "https://github.com/pytorch/tensordict"}
+torchrl = {git = "https://github.com/pytorch/rl", rev = "13bef426dcfa5887c6e5034a6e9697993fa92c37"}
+opencv-python = "^4.9.0.80"
+diffusers = "^0.26.3"
+torchvision = {version = "^0.17.1", source = "torch-cpu"}
+h5py = "^3.10.0"
+robomimic = "0.2.0"
+huggingface-hub = "^0.21.4"
+cmake = "^3.29.0.1"
+sim-pusht = { version = "^0.1.0", optional = true}
+sim-xarm = { version = "^0.1.0", optional = true}
+sim-aloha = { version = "^0.1.2", optional = true}
+
+
+[tool.poetry.extras]
+pusht = ["sim-pusht"]
+xarm = ["sim-xarm"]
+aloha = ["sim-aloha"]
+
+
+[tool.poetry.group.dev.dependencies]
+pre-commit = "^3.6.2"
+debugpy = "^1.8.1"
+
+
+[tool.poetry.group.test.dependencies]
+pytest = "^8.1.0"
+pytest-cov = "^5.0.0"
+
+
+[[tool.poetry.source]]
+name = "torch-cpu"
+url = "https://download.pytorch.org/whl/cpu"
+priority = "supplemental"
+
+
+[tool.ruff]
+line-length = 110
+target-version = "py310"
+exclude = [
+    ".bzr",
+    ".direnv",
+    ".eggs",
+    ".git",
+    ".git-rewrite",
+    ".hg",
+    ".mypy_cache",
+    ".nox",
+    ".pants.d",
+    ".pytype",
+    ".ruff_cache",
+    ".svn",
+    ".tox",
+    ".venv",
+    "__pypackages__",
+    "_build",
+    "buck-out",
+    "build",
+    "dist",
+    "node_modules",
+    "venv",
+]
+
+
+[tool.ruff.lint]
+select = ["E4", "E7", "E9", "F", "I", "N", "B", "C4", "SIM"]
+
+
+[tool.poetry-dynamic-versioning]
+enable = true
+
+
+[build-system]
+requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning>=1.0.0,<2.0.0"]
+build-backend = "poetry_dynamic_versioning.backend"

.github/workflows/build-docker-images.yml

@@ -1,139 +0,0 @@
-# Inspired by
-# https://github.com/huggingface/peft/blob/main/.github/workflows/build_docker_images.yml
-name: Builds
-
-on:
-  workflow_dispatch:
-  workflow_call:
-  schedule:
-    - cron: "0 1 * * *"
-
-env:
-  PYTHON_VERSION: "3.10"
-#   CI_SLACK_CHANNEL: ${{ secrets.CI_DOCKER_CHANNEL }}
-
-jobs:
-  latest-cpu:
-    name: CPU
-    runs-on: ubuntu-latest
-    steps:
-      - name: Cleanup disk
-        run: |
-          sudo df -h
-          # sudo ls -l /usr/local/lib/
-          # sudo ls -l /usr/share/
-          sudo du -sh /usr/local/lib/
-          sudo du -sh /usr/share/
-          sudo rm -rf /usr/local/lib/android
-          sudo rm -rf /usr/share/dotnet
-          sudo du -sh /usr/local/lib/
-          sudo du -sh /usr/share/
-          sudo df -h
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Check out code
-        uses: actions/checkout@v4
-
-      - name: Login to DockerHub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_PASSWORD }}
-
-      - name: Build and Push CPU
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: ./docker/lerobot-cpu/Dockerfile
-          push: true
-          tags: huggingface/lerobot-cpu
-          build-args: PYTHON_VERSION=${{ env.PYTHON_VERSION }}
-
-    #   - name: Post to a Slack channel
-    #     id: slack
-    #     #uses: slackapi/slack-github-action@v1.25.0
-    #     uses: slackapi/slack-github-action@6c661ce58804a1a20f6dc5fbee7f0381b469e001
-    #     with:
-    #       # Slack channel id, channel name, or user id to post message.
-    #       # See also: https://api.slack.com/methods/chat.postMessage#channels
-    #       channel-id: ${{ env.CI_SLACK_CHANNEL }}
-    #       # For posting a rich message using Block Kit
-    #       payload: |
-    #         {
-    #           "text": "lerobot-cpu Docker Image build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}",
-    #           "blocks": [
-    #             {
-    #               "type": "section",
-    #               "text": {
-    #                 "type": "mrkdwn",
-    #                 "text": "lerobot-cpu Docker Image build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}"
-    #               }
-    #             }
-    #           ]
-    #         }
-    #     env:
-    #       SLACK_BOT_TOKEN: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }}
-
-  latest-cuda:
-    name: GPU
-    runs-on: ubuntu-latest
-    steps:
-      - name: Cleanup disk
-        run: |
-          sudo df -h
-          # sudo ls -l /usr/local/lib/
-          # sudo ls -l /usr/share/
-          sudo du -sh /usr/local/lib/
-          sudo du -sh /usr/share/
-          sudo rm -rf /usr/local/lib/android
-          sudo rm -rf /usr/share/dotnet
-          sudo du -sh /usr/local/lib/
-          sudo du -sh /usr/share/
-          sudo df -h
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Check out code
-        uses: actions/checkout@v4
-
-      - name: Login to DockerHub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_PASSWORD }}
-
-      - name: Build and Push GPU
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: ./docker/lerobot-gpu/Dockerfile
-          push: true
-          tags: huggingface/lerobot-gpu
-          build-args: PYTHON_VERSION=${{ env.PYTHON_VERSION }}
-
-      # - name: Post to a Slack channel
-      #   id: slack
-      #   #uses: slackapi/slack-github-action@v1.25.0
-      #   uses: slackapi/slack-github-action@6c661ce58804a1a20f6dc5fbee7f0381b469e001
-      #   with:
-      #     # Slack channel id, channel name, or user id to post message.
-      #     # See also: https://api.slack.com/methods/chat.postMessage#channels
-      #     channel-id: ${{ env.CI_SLACK_CHANNEL }}
-      #     # For posting a rich message using Block Kit
-      #     payload: |
-      #       {
-      #         "text": "lerobot-gpu Docker Image build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}",
-      #         "blocks": [
-      #           {
-      #             "type": "section",
-      #             "text": {
-      #               "type": "mrkdwn",
-      #               "text": "lerobot-gpu Docker Image build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}"
-      #             }
-      #           }
-      #         ]
-      #       }
-      #   env:
-      #     SLACK_BOT_TOKEN: ${{ secrets.SLACK_CIFEEDBACK_BOT_TOKEN }}

.github/workflows/nightly-tests.yml

@@ -1,79 +0,0 @@
-# Inspired by
-# https://github.com/huggingface/peft/blob/main/.github/workflows/nightly.yml
-name: Nightly
-
-on:
-  workflow_dispatch:
-  schedule:
-    - cron: "0 2 * * *"
-
-env:
-  DATA_DIR: tests/data
-  # SLACK_API_TOKEN: ${{ secrets.SLACK_API_TOKEN }}
-
-jobs:
-  run_all_tests_cpu:
-    name: CPU
-    strategy:
-      fail-fast: false
-    runs-on: ubuntu-latest
-    container:
-      image: huggingface/lerobot-cpu:latest
-      options: --shm-size "16gb"
-      credentials:
-        username: ${{ secrets.DOCKERHUB_USERNAME }}
-        password: ${{ secrets.DOCKERHUB_PASSWORD }}
-    defaults:
-      run:
-        shell: bash
-        working-directory: /lerobot
-    steps:
-      - name: Tests
-        env:
-          DATA_DIR: tests/data
-        run: pytest -v --cov=./lerobot --disable-warnings tests
-
-      - name: Tests end-to-end
-        env:
-          DATA_DIR: tests/data
-        run: make test-end-to-end
-
-
-  run_all_tests_single_gpu:
-    name: GPU
-    strategy:
-      fail-fast: false
-    runs-on: [single-gpu, nvidia-gpu, t4, ci]
-    env:
-      CUDA_VISIBLE_DEVICES: "0"
-      TEST_TYPE: "single_gpu"
-    container:
-      image: huggingface/lerobot-gpu:latest
-      options: --gpus all --shm-size "16gb"
-      credentials:
-        username: ${{ secrets.DOCKERHUB_USERNAME }}
-        password: ${{ secrets.DOCKERHUB_PASSWORD }}
-    defaults:
-      run:
-        shell: bash
-        working-directory: /lerobot
-    steps:
-      - name: Nvidia-smi
-        run: nvidia-smi
-
-      - name: Test
-        run: pytest -v --cov=./lerobot --cov-report=xml --disable-warnings tests
-      #   TODO(aliberts): Link with HF Codecov account
-      # - name: Upload coverage reports to Codecov with GitHub Action
-      #   uses: codecov/codecov-action@v4
-      #   with:
-      #     files: ./coverage.xml
-      #     verbose: true
-      - name: Tests end-to-end
-        run: make test-end-to-end
-
-    #   - name: Generate Report
-    #     if: always()
-    #     run: |
-    #       pip install slack_sdk tabulate
-    #       python scripts/log_reports.py >> $GITHUB_STEP_SUMMARY

.github/workflows/quality.yml

@@ -1,56 +0,0 @@
-name: Quality
-
-on:
-  workflow_dispatch:
-  workflow_call:
-  pull_request:
-    branches:
-      - main
-  push:
-    branches:
-      - main
-
-env:
-  PYTHON_VERSION: "3.10"
-
-jobs:
-  style:
-    name: Style
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Repository
-        uses: actions/checkout@v3
-
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ env.PYTHON_VERSION }}
-
-      - name: Get Ruff Version from pre-commit-config.yaml
-        id: get-ruff-version
-        run: |
-          RUFF_VERSION=$(awk '/repo: https:\/\/github.com\/astral-sh\/ruff-pre-commit/{flag=1;next}/rev:/{if(flag){print $2;exit}}' .pre-commit-config.yaml)
-          echo "RUFF_VERSION=${RUFF_VERSION}" >> $GITHUB_ENV
-
-      - name: Install Ruff
-        run: python -m pip install "ruff==${{ env.RUFF_VERSION }}"
-
-      - name: Ruff check
-        run: ruff check
-
-      - name: Ruff format
-        run: ruff format --diff
-
-
-  poetry_check:
-    name: Poetry check
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout Repository
-        uses: actions/checkout@v3
-
-      - name: Install poetry
-        run: pipx install poetry
-
-      - name: Poetry check
-        run: poetry check

.github/workflows/test-docker-build.yml

@@ -1,77 +0,0 @@
-# Inspired by
-# https://github.com/huggingface/peft/blob/main/.github/workflows/test-docker-build.yml
-name: Test Dockerfiles
-
-on:
-  pull_request:
-    branches:
-      - main
-    paths:
-      # Run only when DockerFile files are modified
-      - "docker/**"
-
-env:
-  PYTHON_VERSION: "3.10"
-
-jobs:
-  get_changed_files:
-    name: Detect modified Dockerfiles
-    runs-on: ubuntu-latest
-    outputs:
-      matrix: ${{ steps.set-matrix.outputs.matrix }}
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v4
-
-      - name: Get changed files
-        id: changed-files
-        uses: tj-actions/changed-files@v44
-        with:
-          files: docker/**
-          json: "true"
-
-      - name: Run step if only the files listed above change
-        if: steps.changed-files.outputs.any_changed == 'true'
-        id: set-matrix
-        env:
-          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
-        run: |
-          echo "matrix=${{ steps.changed-files.outputs.all_changed_files}}" >> $GITHUB_OUTPUT
-
-
-  build_modified_dockerfiles:
-    name: Build modified Docker images
-    needs: get_changed_files
-    runs-on: ubuntu-latest
-    if: ${{ needs.get_changed_files.outputs.matrix }} != ''
-    strategy:
-      fail-fast: false
-      matrix:
-        docker-file: ${{ fromJson(needs.get_changed_files.outputs.matrix) }}
-    steps:
-      - name: Cleanup disk
-        run: |
-          sudo df -h
-          # sudo ls -l /usr/local/lib/
-          # sudo ls -l /usr/share/
-          sudo du -sh /usr/local/lib/
-          sudo du -sh /usr/share/
-          sudo rm -rf /usr/local/lib/android
-          sudo rm -rf /usr/share/dotnet
-          sudo du -sh /usr/local/lib/
-          sudo du -sh /usr/share/
-          sudo df -h
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Check out code
-        uses: actions/checkout@v4
-
-      - name: Build Docker image
-        uses: docker/build-push-action@v5
-        with:
-          file: ${{ matrix.docker-file }}
-          context: .
-          push: False
-          build-args: PYTHON_VERSION=${{ env.PYTHON_VERSION }}

.github/workflows/test.yml

@@ -4,125 +4,231 @@ on:
   pull_request:
     branches:
       - main
-    paths:
-      - "lerobot/**"
-      - "tests/**"
-      - "examples/**"
-      - ".github/**"
-      - "poetry.lock"
+    types: [opened, synchronize, reopened, labeled]
   push:
     branches:
       - main
-    paths:
-      - "lerobot/**"
-      - "tests/**"
-      - "examples/**"
-      - ".github/**"
-      - "poetry.lock"
 
 jobs:
-  pytest:
-    name: Pytest
+  tests:
+    if: |
+      ${{ github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'CI') }} ||
+      ${{ github.event_name == 'push' }}
     runs-on: ubuntu-latest
     env:
+      POETRY_VERSION: 1.8.2
       DATA_DIR: tests/data
       MUJOCO_GL: egl
     steps:
-      - uses: actions/checkout@v4
+      #----------------------------------------------
+      #       check-out repo and set-up python
+      #----------------------------------------------
+      - name: Check out repository
+        uses: actions/checkout@v4
         with:
-          lfs: true  # Ensure LFS files are pulled
+          lfs: true
 
-      - name: Install EGL
+      - name: Set up python
+        id: setup-python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+
+      #----------------------------------------------
+      #         install & configure poetry
+      #----------------------------------------------
+      - name: Load cached Poetry installation
+        id: restore-poetry-cache
+        uses: actions/cache/restore@v3
+        with:
+          path: ~/.local
+          key: poetry-${{ env.POETRY_VERSION }}
+
+      - name: Install Poetry
+        if: steps.restore-poetry-cache.outputs.cache-hit != 'true'
+        uses: snok/install-poetry@v1
+        with:
+          version: ${{ env.POETRY_VERSION }}
+          virtualenvs-create: true
+          installer-parallel: true
+
+      - name: Save cached Poetry installation
+        if: |
+          steps.restore-poetry-cache.outputs.cache-hit != 'true' &&
+          github.ref_name == 'main'
+        id: save-poetry-cache
+        uses: actions/cache/save@v3
+        with:
+          path: ~/.local
+          key: poetry-${{ env.POETRY_VERSION }}
+
+      - name: Configure Poetry
+        run: poetry config virtualenvs.in-project true
+
+      #----------------------------------------------
+      #           install dependencies
+      #----------------------------------------------
+      # TODO(aliberts): move to gpu runners
+      - name: Select cpu dependencies  # HACK
+        run: cp -t . .github/poetry/cpu/pyproject.toml .github/poetry/cpu/poetry.lock
+
+      - name: Load cached venv
+        id: restore-dependencies-cache
+        uses: actions/cache/restore@v3
+        with:
+          path: .venv
+          key: venv-${{ steps.setup-python.outputs.python-version }}-${{ env.POETRY_VERSION }}-${{ hashFiles('**/poetry.lock') }}
+
+      - name: Install dependencies
+        if: steps.restore-dependencies-cache.outputs.cache-hit != 'true'
+        env:
+          TMPDIR: ~/tmp
+          TEMP: ~/tmp
+          TMP: ~/tmp
+        run: |
+          mkdir ~/tmp
+          poetry install --no-interaction --no-root --without dev --all-extras
+
+      - name: Save cached venv
+        if: |
+            steps.restore-dependencies-cache.outputs.cache-hit != 'true' &&
+            github.ref_name == 'main'
+        id: save-dependencies-cache
+        uses: actions/cache/save@v3
+        with:
+          path: .venv
+          key: venv-${{ steps.setup-python.outputs.python-version }}-${{ env.POETRY_VERSION }}-${{ hashFiles('**/poetry.lock') }}
+
+      - name: Install libegl1-mesa-dev (to use MUJOCO_GL=egl)
         run: sudo apt-get update && sudo apt-get install -y libegl1-mesa-dev
 
-      - name: Install poetry
+      #----------------------------------------------
+      #             install project
+      #----------------------------------------------
+      - name: Install project
+        run: poetry install --no-interaction --without dev --all-extras
+
+      #----------------------------------------------
+      #            run tests & coverage
+      #----------------------------------------------
+      - name: Run tests
+        env:
+          LEROBOT_TESTS_DEVICE: cpu
         run: |
-          pipx install poetry && poetry config virtualenvs.in-project true
-          echo "${{ github.workspace }}/.venv/bin" >> $GITHUB_PATH
+          source .venv/bin/activate
+          pytest --cov=./lerobot --cov-report=xml tests
 
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.10"
-          cache: "poetry"
+      #   TODO(aliberts): Link with HF Codecov account
+      # - name: Upload coverage reports to Codecov with GitHub Action
+      #   uses: codecov/codecov-action@v4
+      #   with:
+      #     files: ./coverage.xml
+      #     verbose: true
 
-      - name: Install poetry dependencies
+      #----------------------------------------------
+      #            run end-to-end tests
+      #----------------------------------------------
+      - name: Test train ACT on ALOHA end-to-end
         run: |
-          poetry install --all-extras
+          source .venv/bin/activate
+          python lerobot/scripts/train.py \
+            policy=act \
+            env=aloha \
+            wandb.enable=False \
+            offline_steps=2 \
+            online_steps=0 \
+            device=cpu \
+            save_model=true \
+            save_freq=2 \
+            horizon=20 \
+            policy.batch_size=2 \
+            hydra.run.dir=tests/outputs/act/
 
-      - name: Test with pytest
+      - name: Test eval ACT on ALOHA end-to-end
         run: |
-          pytest tests -v --cov=./lerobot --durations=0 \
-            -W ignore::DeprecationWarning:imageio_ffmpeg._utils:7 \
-            -W ignore::UserWarning:torch.utils.data.dataloader:558 \
-            -W ignore::UserWarning:gymnasium.utils.env_checker:247 \
-            && rm -rf tests/outputs outputs
+          source .venv/bin/activate
+          python lerobot/scripts/eval.py \
+            --config tests/outputs/act/.hydra/config.yaml \
+            eval_episodes=1 \
+            env.episode_length=8 \
+            device=cpu \
+            policy.pretrained_model_path=tests/outputs/act/models/2.pt
 
+      # TODO(aliberts): This takes ~2mn to run, needs to be improved
+      # - name: Test eval ACT on ALOHA end-to-end (policy is None)
+      #   run: |
+      #     source .venv/bin/activate
+      #     python lerobot/scripts/eval.py \
+      #       --config lerobot/configs/default.yaml \
+      #       policy=act \
+      #       env=aloha \
+      #       eval_episodes=1 \
+      #       device=cpu
 
-  pytest-minimal:
-    name: Pytest (minimal install)
-    runs-on: ubuntu-latest
-    env:
-      DATA_DIR: tests/data
-      MUJOCO_GL: egl
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          lfs: true  # Ensure LFS files are pulled
-
-      - name: Install poetry
+      - name: Test train Diffusion on PushT end-to-end
         run: |
-          pipx install poetry && poetry config virtualenvs.in-project true
-          echo "${{ github.workspace }}/.venv/bin" >> $GITHUB_PATH
+          source .venv/bin/activate
+          python lerobot/scripts/train.py \
+            policy=diffusion \
+            env=pusht \
+            wandb.enable=False \
+            offline_steps=2 \
+            online_steps=0 \
+            device=cpu \
+            save_model=true \
+            save_freq=2 \
+            hydra.run.dir=tests/outputs/diffusion/
 
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.10"
-
-      - name: Install poetry dependencies
+      - name: Test eval Diffusion on PushT end-to-end
         run: |
-          poetry install --extras "test"
+          source .venv/bin/activate
+          python lerobot/scripts/eval.py \
+            --config tests/outputs/diffusion/.hydra/config.yaml \
+            eval_episodes=1 \
+            env.episode_length=8 \
+            device=cpu \
+            policy.pretrained_model_path=tests/outputs/diffusion/models/2.pt
 
-      - name: Test with pytest
+      - name: Test eval Diffusion on PushT end-to-end (policy is None)
         run: |
-          pytest tests -v --cov=./lerobot --durations=0 \
-            -W ignore::DeprecationWarning:imageio_ffmpeg._utils:7 \
-            -W ignore::UserWarning:torch.utils.data.dataloader:558 \
-            -W ignore::UserWarning:gymnasium.utils.env_checker:247 \
-            && rm -rf tests/outputs outputs
+          source .venv/bin/activate
+          python lerobot/scripts/eval.py \
+            --config lerobot/configs/default.yaml \
+            policy=diffusion  \
+            env=pusht \
+            eval_episodes=1 \
+            device=cpu
 
-
-  end-to-end:
-    name: End-to-end
-    runs-on: ubuntu-latest
-    env:
-      DATA_DIR: tests/data
-      MUJOCO_GL: egl
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          lfs: true  # Ensure LFS files are pulled
-
-      - name: Install EGL
-        run: sudo apt-get update && sudo apt-get install -y libegl1-mesa-dev
-
-      - name: Install poetry
+      - name: Test train TDMPC on Simxarm end-to-end
         run: |
-          pipx install poetry && poetry config virtualenvs.in-project true
-          echo "${{ github.workspace }}/.venv/bin" >> $GITHUB_PATH
+          source .venv/bin/activate
+          python lerobot/scripts/train.py \
+            policy=tdmpc \
+            env=simxarm \
+            wandb.enable=False \
+            offline_steps=1 \
+            online_steps=1 \
+            device=cpu \
+            save_model=true \
+            save_freq=2 \
+            hydra.run.dir=tests/outputs/tdmpc/
 
-      - name: Set up Python 3.10
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.10"
-          cache: "poetry"
-
-      - name: Install poetry dependencies
+      - name: Test eval TDMPC on Simxarm end-to-end
         run: |
-          poetry install --all-extras
+          source .venv/bin/activate
+          python lerobot/scripts/eval.py \
+            --config tests/outputs/tdmpc/.hydra/config.yaml \
+            eval_episodes=1 \
+            env.episode_length=8 \
+            device=cpu \
+            policy.pretrained_model_path=tests/outputs/tdmpc/models/2.pt
 
-      - name: Test end-to-end
+      - name: Test eval TDPMC on Simxarm end-to-end (policy is None)
         run: |
-          make test-end-to-end \
-            && rm -rf outputs
+          source .venv/bin/activate
+          python lerobot/scripts/eval.py \
+            --config lerobot/configs/default.yaml \
+            policy=tdmpc  \
+            env=simxarm \
+            eval_episodes=1 \
+            device=cpu

.gitignore

@@ -6,15 +6,11 @@ data
 outputs
 .vscode
 rl
-.DS_Store
 
 # HPC
 nautilus/*.yaml
 *.key
 
-# Slurm
-sbatch*.sh
-
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

.pre-commit-config.yaml

@@ -1,9 +1,9 @@
-exclude: ^(tests/data)
+exclude: ^(data/|tests/)
 default_language_version:
     python: python3.10
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v4.5.0
     hooks:
       - id: check-added-large-files
       - id: debug-statements
@@ -18,7 +18,7 @@ repos:
     hooks:
     -   id: pyupgrade
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.4.3
+    rev: v0.3.4
     hooks:
       - id: ruff
         args: [--fix]

CODE_OF_CONDUCT.md

@@ -1,133 +0,0 @@
-
-# Contributor Covenant Code of Conduct
-
-## Our Pledge
-
-We as members, contributors, and leaders pledge to make participation in our
-community a harassment-free experience for everyone, regardless of age, body
-size, visible or invisible disability, ethnicity, sex characteristics, gender
-identity and expression, level of experience, education, socio-economic status,
-nationality, personal appearance, race, caste, color, religion, or sexual
-identity and orientation.
-
-We pledge to act and interact in ways that contribute to an open, welcoming,
-diverse, inclusive, and healthy community.
-
-## Our Standards
-
-Examples of behavior that contributes to a positive environment for our
-community include:
-
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
-  and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the overall
-  community
-
-Examples of unacceptable behavior include:
-
-* The use of sexualized language or imagery, and sexual attention or advances of
-  any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email address,
-  without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Enforcement Responsibilities
-
-Community leaders are responsible for clarifying and enforcing our standards of
-acceptable behavior and will take appropriate and fair corrective action in
-response to any behavior that they deem inappropriate, threatening, offensive,
-or harmful.
-
-Community leaders have the right and responsibility to remove, edit, or reject
-comments, commits, code, wiki edits, issues, and other contributions that are
-not aligned to this Code of Conduct, and will communicate reasons for moderation
-decisions when appropriate.
-
-## Scope
-
-This Code of Conduct applies within all community spaces, and also applies when
-an individual is officially representing the community in public spaces.
-Examples of representing our community include using an official email address,
-posting via an official social media account, or acting as an appointed
-representative at an online or offline event.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement at
-[feedback@huggingface.co](mailto:feedback@huggingface.co).
-All complaints will be reviewed and investigated promptly and fairly.
-
-All community leaders are obligated to respect the privacy and security of the
-reporter of any incident.
-
-## Enforcement Guidelines
-
-Community leaders will follow these Community Impact Guidelines in determining
-the consequences for any action they deem in violation of this Code of Conduct:
-
-### 1. Correction
-
-**Community Impact**: Use of inappropriate language or other behavior deemed
-unprofessional or unwelcome in the community.
-
-**Consequence**: A private, written warning from community leaders, providing
-clarity around the nature of the violation and an explanation of why the
-behavior was inappropriate. A public apology may be requested.
-
-### 2. Warning
-
-**Community Impact**: A violation through a single incident or series of
-actions.
-
-**Consequence**: A warning with consequences for continued behavior. No
-interaction with the people involved, including unsolicited interaction with
-those enforcing the Code of Conduct, for a specified period of time. This
-includes avoiding interactions in community spaces as well as external channels
-like social media. Violating these terms may lead to a temporary or permanent
-ban.
-
-### 3. Temporary Ban
-
-**Community Impact**: A serious violation of community standards, including
-sustained inappropriate behavior.
-
-**Consequence**: A temporary ban from any sort of interaction or public
-communication with the community for a specified period of time. No public or
-private interaction with the people involved, including unsolicited interaction
-with those enforcing the Code of Conduct, is allowed during this period.
-Violating these terms may lead to a permanent ban.
-
-### 4. Permanent Ban
-
-**Community Impact**: Demonstrating a pattern of violation of community
-standards, including sustained inappropriate behavior, harassment of an
-individual, or aggression toward or disparagement of classes of individuals.
-
-**Consequence**: A permanent ban from any sort of public interaction within the
-community.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage],
-version 2.1, available at
-[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
-
-Community Impact Guidelines were inspired by
-[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
-
-For answers to common questions about this code of conduct, see the FAQ at
-[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
-[https://www.contributor-covenant.org/translations][translations].
-
-[homepage]: https://www.contributor-covenant.org
-[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
-[Mozilla CoC]: https://github.com/mozilla/diversity
-[FAQ]: https://www.contributor-covenant.org/faq
-[translations]: https://www.contributor-covenant.org/translations

CONTRIBUTING.md

@@ -1,275 +0,0 @@
-# How to contribute to 🤗 LeRobot?
-
-Everyone is welcome to contribute, and we value everybody's contribution. Code
-is thus not the only way to help the community. Answering questions, helping
-others, reaching out and improving the documentations are immensely valuable to
-the community.
-
-It also helps us if you spread the word: reference the library from blog posts
-on the awesome projects it made possible, shout out on Twitter when it has
-helped you, or simply ⭐️ the repo to say "thank you".
-
-Whichever way you choose to contribute, please be mindful to respect our
-[code of conduct](https://github.com/huggingface/lerobot/blob/main/CODE_OF_CONDUCT.md).
-
-## You can contribute in so many ways!
-
-Some of the ways you can contribute to 🤗 LeRobot:
-* Fixing outstanding issues with the existing code.
-* Implementing new models, datasets or simulation environments.
-* Contributing to the examples or to the documentation.
-* Submitting issues related to bugs or desired new features.
-
-Following the guides below, feel free to open issues and PRs and to coordinate your efforts with the community on our [Discord Channel](https://discord.gg/VjFz58wn3R). For specific inquiries, reach out to [Remi Cadene](remi.cadene@huggingface.co).
-
-If you are not sure how to contribute or want to know the next features we working on, look on this project page: [LeRobot TODO](https://github.com/orgs/huggingface/projects/46)
-
-## Submitting a new issue or feature request
-
-Do your best to follow these guidelines when submitting an issue or a feature
-request. It will make it easier for us to come back to you quickly and with good
-feedback.
-
-### Did you find a bug?
-
-The 🤗 LeRobot library is robust and reliable thanks to the users who notify us of
-the problems they encounter. So thank you for reporting an issue.
-
-First, we would really appreciate it if you could **make sure the bug was not
-already reported** (use the search bar on Github under Issues).
-
-Did not find it? :( So we can act quickly on it, please follow these steps:
-
-* Include your **OS type and version**, the versions of **Python** and **PyTorch**.
-* A short, self-contained, code snippet that allows us to reproduce the bug in
-  less than 30s.
-* The full traceback if an exception is raised.
-* Attach any other additional information, like screenshots, you think may help.
-
-### Do you want a new feature?
-
-A good feature request addresses the following points:
-
-1. Motivation first:
-* Is it related to a problem/frustration with the library? If so, please explain
-  why. Providing a code snippet that demonstrates the problem is best.
-* Is it related to something you would need for a project? We'd love to hear
-  about it!
-* Is it something you worked on and think could benefit the community?
-  Awesome! Tell us what problem it solved for you.
-2. Write a *paragraph* describing the feature.
-3. Provide a **code snippet** that demonstrates its future use.
-4. In case this is related to a paper, please attach a link.
-5. Attach any additional information (drawings, screenshots, etc.) you think may help.
-
-If your issue is well written we're already 80% of the way there by the time you
-post it.
-
-## Adding new policies, datasets or environments
-
-Look at our implementations for [datasets](./lerobot/common/datasets/), [policies](./lerobot/common/policies/),
-environments ([aloha](https://github.com/huggingface/gym-aloha),
-[xarm](https://github.com/huggingface/gym-xarm),
-[pusht](https://github.com/huggingface/gym-pusht))
-and follow the same api design.
-
-When implementing a new dataset loadable with LeRobotDataset follow these steps:
-- Update `available_datasets_per_env` in `lerobot/__init__.py`
-
-When implementing a new environment (e.g. `gym_aloha`), follow these steps:
-- Update `available_tasks_per_env` and `available_datasets_per_env` in `lerobot/__init__.py`
-
-When implementing a new policy class (e.g. `DiffusionPolicy`) follow these steps:
-- Update `available_policies` and `available_policies_per_env`, in `lerobot/__init__.py`
-- Set the required `name` class attribute.
-- Update variables in `tests/test_available.py` by importing your new Policy class
-
-## Submitting a pull request (PR)
-
-Before writing code, we strongly advise you to search through the existing PRs or
-issues to make sure that nobody is already working on the same thing. If you are
-unsure, it is always a good idea to open an issue to get some feedback.
-
-You will need basic `git` proficiency to be able to contribute to
-🤗 LeRobot. `git` is not the easiest tool to use but it has the greatest
-manual. Type `git --help` in a shell and enjoy. If you prefer books, [Pro
-Git](https://git-scm.com/book/en/v2) is a very good reference.
-
-Follow these steps to start contributing:
-
-1. Fork the [repository](https://github.com/huggingface/lerobot) by
-   clicking on the 'Fork' button on the repository's page. This creates a copy of the code
-   under your GitHub user account.
-
-2. Clone your fork to your local disk, and add the base repository as a remote. The following command
-   assumes you have your public SSH key uploaded to GitHub. See the following guide for more
-   [information](https://docs.github.com/en/repositories/creating-and-managing-repositories/cloning-a-repository).
-
-   ```bash
-   git clone git@github.com:<your Github handle>/lerobot.git
-   cd lerobot
-   git remote add upstream https://github.com/huggingface/lerobot.git
-   ```
-
-3. Create a new branch to hold your development changes, and do this for every new PR you work on.
-
-   Start by synchronizing your `main` branch with the `upstream/main` branch (more details in the [GitHub Docs](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/syncing-a-fork)):
-
-   ```bash
-   git checkout main
-   git fetch upstream
-   git rebase upstream/main
-   ```
-
-   Once your `main` branch is synchronized, create a new branch from it:
-
-   ```bash
-   git checkout -b a-descriptive-name-for-my-changes
-   ```
-
-   🚨 **Do not** work on the `main` branch.
-
-4. for development, we use `poetry` instead of just `pip` to easily track our dependencies.
-   If you don't have it already, follow the [instructions](https://python-poetry.org/docs/#installation) to install it.
-
-   Set up a development environment with conda or miniconda:
-   ```bash
-   conda create -y -n lerobot-dev python=3.10 && conda activate lerobot-dev
-   ```
-
-   To develop on 🤗 LeRobot, you will at least need to install the `dev` and `test` extras dependencies along with the core library:
-   ```bash
-   poetry install --sync --extras "dev test"
-   ```
-
-   You can also install the project with all its dependencies (including environments):
-   ```bash
-   poetry install --sync --all-extras
-   ```
-
-   > **Note:** If you don't install simulation environments with `--all-extras`, the tests that require them will be skipped when running the pytest suite locally. However, they *will* be tested in the CI. In general, we advise you to install everything and test locally before pushing.
-
-   Whichever command you chose to install the project (e.g. `poetry install --sync --all-extras`), you should run it again when pulling code with an updated version of `pyproject.toml` and `poetry.lock` in order to synchronize your virtual environment with the new dependencies.
-
-   The equivalent of `pip install some-package`, would just be:
-   ```bash
-   poetry add some-package
-   ```
-
-   When making changes to the poetry sections of the `pyproject.toml`, you should run the following command to lock dependencies.
-   ```bash
-   poetry lock --no-update
-   ```
-
-5. Develop the features on your branch.
-
-   As you work on the features, you should make sure that the test suite
-   passes. You should run the tests impacted by your changes like this (see
-   below an explanation regarding the environment variable):
-
-   ```bash
-   pytest tests/<TEST_TO_RUN>.py
-   ```
-
-6. Follow our style.
-
-   `lerobot` relies on `ruff` to format its source code
-   consistently. Set up [`pre-commit`](https://pre-commit.com/) to run these checks
-   automatically as Git commit hooks.
-
-   Install `pre-commit` hooks:
-   ```bash
-   pre-commit install
-   ```
-
-   You can run these hooks whenever you need on staged files with:
-   ```bash
-   pre-commit
-   ```
-
-   Once you're happy with your changes, add changed files using `git add` and
-   make a commit with `git commit` to record your changes locally:
-
-   ```bash
-   git add modified_file.py
-   git commit
-   ```
-
-   Note, if you already commited some changes that have a wrong formatting, you can use:
-   ```bash
-   pre-commit run --all-files
-   ```
-
-   Please write [good commit messages](https://chris.beams.io/posts/git-commit/).
-
-   It is a good idea to sync your copy of the code with the original
-   repository regularly. This way you can quickly account for changes:
-
-   ```bash
-   git fetch upstream
-   git rebase upstream/main
-   ```
-
-   Push the changes to your account using:
-
-   ```bash
-   git push -u origin a-descriptive-name-for-my-changes
-   ```
-
-6. Once you are satisfied (**and the checklist below is happy too**), go to the
-   webpage of your fork on GitHub. Click on 'Pull request' to send your changes
-   to the project maintainers for review.
-
-7. It's ok if maintainers ask you for changes. It happens to core contributors
-   too! So everyone can see the changes in the Pull request, work in your local
-   branch and push the changes to your fork. They will automatically appear in
-   the pull request.
-
-
-### Checklist
-
-1. The title of your pull request should be a summary of its contribution;
-2. If your pull request addresses an issue, please mention the issue number in
-   the pull request description to make sure they are linked (and people
-   consulting the issue know you are working on it);
-3. To indicate a work in progress please prefix the title with `[WIP]`, or preferably mark
-   the PR as a draft PR. These are useful to avoid duplicated work, and to differentiate
-   it from PRs ready to be merged;
-4. Make sure existing tests pass;
-<!-- 5. Add high-coverage tests. No quality testing = no merge.
-
-See an example of a good PR here: https://github.com/huggingface/lerobot/pull/ -->
-
-### Tests
-
-An extensive test suite is included to test the library behavior and several examples. Library tests can be found in the [tests folder](https://github.com/huggingface/lerobot/tree/main/tests).
-
-Install [git lfs](https://git-lfs.com/) to retrieve test artifacts (if you don't have it already).
-
-On Mac:
-```bash
-brew install git-lfs
-git lfs install
-```
-
-On Ubuntu:
-```bash
-sudo apt-get install git-lfs
-git lfs install
-```
-
-Pull artifacts if they're not in [tests/data](tests/data)
-```bash
-git lfs pull
-```
-
-We use `pytest` in order to run the tests. From the root of the
-repository, here's how to run tests with `pytest` for the library:
-
-```bash
-DATA_DIR="tests/data" python -m pytest -sv ./tests
-```
-
-
-You can specify a smaller set of tests in order to test only the feature
-you're working on.

Makefile

@@ -1,144 +0,0 @@
-.PHONY: tests
-
-PYTHON_PATH := $(shell which python)
-
-# If Poetry is installed, redefine PYTHON_PATH to use the Poetry-managed Python
-POETRY_CHECK := $(shell command -v poetry)
-ifneq ($(POETRY_CHECK),)
-    PYTHON_PATH := $(shell poetry run which python)
-endif
-
-export PATH := $(dir $(PYTHON_PATH)):$(PATH)
-
-
-build-cpu:
-	docker build -t lerobot:latest -f docker/lerobot-cpu/Dockerfile .
-
-build-gpu:
-	docker build -t lerobot:latest -f docker/lerobot-gpu/Dockerfile .
-
-test-end-to-end:
-	${MAKE} test-act-ete-train
-	${MAKE} test-act-ete-eval
-	${MAKE} test-act-ete-train-amp
-	${MAKE} test-act-ete-eval-amp
-	${MAKE} test-diffusion-ete-train
-	${MAKE} test-diffusion-ete-eval
-	${MAKE} test-tdmpc-ete-train
-	${MAKE} test-tdmpc-ete-eval
-	${MAKE} test-default-ete-eval
-
-test-act-ete-train:
-	python lerobot/scripts/train.py \
-		policy=act \
-		policy.dim_model=64 \
-		env=aloha \
-		wandb.enable=False \
-		training.offline_steps=2 \
-		training.online_steps=0 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		device=cpu \
-		training.save_model=true \
-		training.save_freq=2 \
-		policy.n_action_steps=20 \
-		policy.chunk_size=20 \
-		training.batch_size=2 \
-		hydra.run.dir=tests/outputs/act/
-
-test-act-ete-eval:
-	python lerobot/scripts/eval.py \
-		-p tests/outputs/act/checkpoints/000002 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		env.episode_length=8 \
-		device=cpu \
-
-test-act-ete-train-amp:
-	python lerobot/scripts/train.py \
-		policy=act \
-		policy.dim_model=64 \
-		env=aloha \
-		wandb.enable=False \
-		training.offline_steps=2 \
-		training.online_steps=0 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		device=cpu \
-		training.save_model=true \
-		training.save_freq=2 \
-		policy.n_action_steps=20 \
-		policy.chunk_size=20 \
-		training.batch_size=2 \
-		hydra.run.dir=tests/outputs/act/ \
-		use_amp=true
-
-test-act-ete-eval-amp:
-	python lerobot/scripts/eval.py \
-		-p tests/outputs/act/checkpoints/000002 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		env.episode_length=8 \
-		device=cpu \
-		use_amp=true
-
-test-diffusion-ete-train:
-	python lerobot/scripts/train.py \
-		policy=diffusion \
-		policy.down_dims=\[64,128,256\] \
-		policy.diffusion_step_embed_dim=32 \
-		policy.num_inference_steps=10 \
-		env=pusht \
-		wandb.enable=False \
-		training.offline_steps=2 \
-		training.online_steps=0 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		device=cpu \
-		training.save_model=true \
-		training.save_freq=2 \
-		training.batch_size=2 \
-		hydra.run.dir=tests/outputs/diffusion/
-
-test-diffusion-ete-eval:
-	python lerobot/scripts/eval.py \
-		-p tests/outputs/diffusion/checkpoints/000002 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		env.episode_length=8 \
-		device=cpu \
-
-# TODO(alexander-soare): Restore online_steps to 2 when it is reinstated.
-test-tdmpc-ete-train:
-	python lerobot/scripts/train.py \
-		policy=tdmpc \
-		env=xarm \
-		env.task=XarmLift-v0 \
-		dataset_repo_id=lerobot/xarm_lift_medium \
-		wandb.enable=False \
-		training.offline_steps=2 \
-		training.online_steps=0 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		env.episode_length=2 \
-		device=cpu \
-		training.save_model=true \
-		training.save_freq=2 \
-		training.batch_size=2 \
-		hydra.run.dir=tests/outputs/tdmpc/
-
-test-tdmpc-ete-eval:
-	python lerobot/scripts/eval.py \
-		-p tests/outputs/tdmpc/checkpoints/000002 \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		env.episode_length=8 \
-		device=cpu \
-
-test-default-ete-eval:
-	python lerobot/scripts/eval.py \
-		--config lerobot/configs/default.yaml \
-		eval.n_episodes=1 \
-		eval.batch_size=1 \
-		env.episode_length=8 \
-		device=cpu \

README.md

@@ -10,14 +10,13 @@
 
 <div align="center">
 
-[![Tests](https://github.com/huggingface/lerobot/actions/workflows/nightly-tests.yml/badge.svg?branch=main)](https://github.com/huggingface/lerobot/actions/workflows/nightly-tests.yml?query=branch%3Amain)
+[![Tests](https://github.com/huggingface/lerobot/actions/workflows/test.yml/badge.svg?branch=main)](https://github.com/huggingface/lerobot/actions/workflows/test.yml?query=branch%3Amain)
 [![Coverage](https://codecov.io/gh/huggingface/lerobot/branch/main/graph/badge.svg?token=TODO)](https://codecov.io/gh/huggingface/lerobot)
 [![Python versions](https://img.shields.io/pypi/pyversions/lerobot)](https://www.python.org/downloads/)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/huggingface/lerobot/blob/main/LICENSE)
 [![Status](https://img.shields.io/pypi/status/lerobot)](https://pypi.org/project/lerobot/)
 [![Version](https://img.shields.io/pypi/v/lerobot)](https://pypi.org/project/lerobot/)
 [![Examples](https://img.shields.io/badge/Examples-green.svg)](https://github.com/huggingface/lerobot/tree/main/examples)
-[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-v2.1%20adopted-ff69b4.svg)](https://github.com/huggingface/lerobot/blob/main/CODE_OF_CONDUCT.md)
 [![Discord](https://dcbadge.vercel.app/api/server/C5P34WJ68S?style=flat)](https://discord.gg/s3KuuzsPFb)
 
 </div>
@@ -29,15 +28,15 @@
 ---
 
 
-🤗 LeRobot aims to provide models, datasets, and tools for real-world robotics in PyTorch. The goal is to lower the barrier to entry to robotics so that everyone can contribute and benefit from sharing datasets and pretrained models.
+🤗 LeRobot aims to provide models, datasets, and tools for real-world robotics in PyTorch. The goal is to lower the barrier for entry to robotics so that everyone can contribute and benefit from sharing datasets and pretrained models.
 
 🤗 LeRobot contains state-of-the-art approaches that have been shown to transfer to the real-world with a focus on imitation learning and reinforcement learning.
 
-🤗 LeRobot already provides a set of pretrained models, datasets with human collected demonstrations, and simulation environments to get started without assembling a robot. In the coming weeks, the plan is to add more and more support for real-world robotics on the most affordable and capable robots out there.
+🤗 LeRobot already provides a set of pretrained models, datasets with human collected demonstrations, and simulated environments so that everyone can get started. In the coming weeks, the plan is to add more and more support for real-world robotics on the most affordable and capable robots out there.
 
-🤗 LeRobot hosts pretrained models and datasets on this Hugging Face community page: [huggingface.co/lerobot](https://huggingface.co/lerobot)
+🤗 LeRobot hosts pretrained models and datasets on this HuggingFace community page: [huggingface.co/lerobot](https://huggingface.co/lerobot)
 
-#### Examples of pretrained models on simulation environments
+#### Examples of pretrained models and environments
 
 <table>
   <tr>
@@ -54,178 +53,317 @@
 
 ### Acknowledgment
 
-- Thanks to Tony Zaho, Zipeng Fu and colleagues for open sourcing ACT policy, ALOHA environments and datasets. Ours are adapted from [ALOHA](https://tonyzhaozh.github.io/aloha) and [Mobile ALOHA](https://mobile-aloha.github.io).
-- Thanks to Cheng Chi, Zhenjia Xu and colleagues for open sourcing Diffusion policy, Pusht environment and datasets, as well as UMI datasets. Ours are adapted from [Diffusion Policy](https://diffusion-policy.cs.columbia.edu) and [UMI Gripper](https://umi-gripper.github.io).
-- Thanks to Nicklas Hansen, Yunhai Feng and colleagues for open sourcing TDMPC policy, Simxarm environments and datasets. Ours are adapted from [TDMPC](https://github.com/nicklashansen/tdmpc) and [FOWM](https://www.yunhaifeng.com/FOWM).
-- Thanks to Antonio Loquercio and Ashish Kumar for their early support.
-
+- ACT policy and ALOHA environment are adapted from [ALOHA](https://tonyzhaozh.github.io/aloha/)
+- Diffusion policy and Pusht environment are adapted from [Diffusion Policy](https://diffusion-policy.cs.columbia.edu/)
+- TDMPC policy and Simxarm environment are adapted from [FOWM](https://www.yunhaifeng.com/FOWM/)
+- Abstractions and utilities for Reinforcement Learning come from [TorchRL](https://github.com/pytorch/rl)
 
 ## Installation
 
 Download our source code:
 ```bash
-git clone https://github.com/huggingface/lerobot.git && cd lerobot
+git clone https://github.com/huggingface/lerobot.git
+cd lerobot
 ```
 
 Create a virtual environment with Python 3.10 and activate it, e.g. with [`miniconda`](https://docs.anaconda.com/free/miniconda/index.html):
 ```bash
-conda create -y -n lerobot python=3.10 && conda activate lerobot
+conda create -y -n lerobot python=3.10
+conda activate lerobot
 ```
 
-Install 🤗 LeRobot:
+Then, install 🤗 LeRobot:
 ```bash
-pip install .
+python -m pip install .
 ```
 
-For simulations, 🤗 LeRobot comes with gymnasium environments that can be installed as extras:
-- [aloha](https://github.com/huggingface/gym-aloha)
-- [xarm](https://github.com/huggingface/gym-xarm)
-- [pusht](https://github.com/huggingface/gym-pusht)
-
-For instance, to install 🤗 LeRobot with aloha and pusht, use:
-```bash
-pip install ".[aloha, pusht]"
-```
-
-To use [Weights and Biases](https://docs.wandb.ai/quickstart) for experiment tracking, log in with
+To use [Weights and Biases](https://docs.wandb.ai/quickstart) for experiments tracking, log in with
 ```bash
 wandb login
 ```
 
-(note: you will also need to enable WandB in the configuration. See below.)
-
 ## Walkthrough
 
 ```
 .
-├── examples             # contains demonstration examples, start here to learn about LeRobot
 ├── lerobot
 |   ├── configs          # contains hydra yaml files with all options that you can override in the command line
 |   |   ├── default.yaml   # selected by default, it loads pusht environment and diffusion policy
-|   |   ├── env            # various sim environments and their datasets: aloha.yaml, pusht.yaml, xarm.yaml
+|   |   ├── env            # various sim environments and their datasets: aloha.yaml, pusht.yaml, simxarm.yaml
 |   |   └── policy         # various policies: act.yaml, diffusion.yaml, tdmpc.yaml
 |   ├── common           # contains classes and utilities
-|   |   ├── datasets       # various datasets of human demonstrations: aloha, pusht, xarm
-|   |   ├── envs           # various sim environments: aloha, pusht, xarm
-|   |   ├── policies       # various policies: act, diffusion, tdmpc
-|   |   └── utils          # various utilities
-|   └── scripts          # contains functions to execute via command line
-|       ├── eval.py                 # load policy and evaluate it on an environment
-|       ├── train.py                # train a policy via imitation learning and/or reinforcement learning
-|       ├── push_dataset_to_hub.py  # convert your dataset into LeRobot dataset format and upload it to the Hugging Face hub
-|       └── visualize_dataset.py    # load a dataset and render its demonstrations
+|   |   ├── datasets       # various datasets of human demonstrations: aloha, pusht, simxarm
+|   |   ├── envs           # various sim environments: aloha, pusht, simxarm
+|   |   └── policies       # various policies: act, diffusion, tdmpc
+|   └── scripts                  # contains functions to execute via command line
+|       ├── visualize_dataset.py  # load a dataset and render its demonstrations
+|       ├── eval.py               # load policy and evaluate it on an environment
+|       └── train.py              # train a policy via imitation learning and/or reinforcement learning
 ├── outputs               # contains results of scripts execution: logs, videos, model checkpoints
+├── .github
+|   └── workflows
+|       └── test.yml      # defines install settings for continuous integration and specifies end-to-end tests
 └── tests                 # contains pytest utilities for continuous integration
+
 ```
 
 ### Visualize datasets
 
-Check out [example 1](./examples/1_load_lerobot_dataset.py) that illustrates how to use our dataset class which automatically download data from the Hugging Face hub.
+You can import our dataset class, download the data from the HuggingFace hub and use our rendering utilities:
+```python
+""" Copy pasted from `examples/1_visualize_dataset.py` """
+import lerobot
+from lerobot.common.datasets.aloha import AlohaDataset
+from torchrl.data.replay_buffers import SamplerWithoutReplacement
+from lerobot.scripts.visualize_dataset import render_dataset
 
-You can also locally visualize episodes from a dataset by executing our script from the command line:
-```bash
-python lerobot/scripts/visualize_dataset.py \
-    --repo-id lerobot/pusht \
-    --episode-index 0
+print(lerobot.available_datasets)
+# >>> ['aloha_sim_insertion_human', 'aloha_sim_insertion_scripted', 'aloha_sim_transfer_cube_human', 'aloha_sim_transfer_cube_scripted', 'pusht', 'xarm_lift_medium']
+
+# we use this sampler to sample 1 frame after the other
+sampler = SamplerWithoutReplacement(shuffle=False)
+
+dataset = AlohaDataset("aloha_sim_transfer_cube_human", sampler=sampler)
+
+video_paths = render_dataset(
+    dataset,
+    out_dir="outputs/visualize_dataset/example",
+    max_num_samples=300,
+    fps=50,
+)
+print(video_paths)
+# >>> ['outputs/visualize_dataset/example/episode_0.mp4']
 ```
 
-It will open `rerun.io` and display the camera streams, robot states and actions, like this:
-
-https://github-production-user-asset-6210df.s3.amazonaws.com/4681518/328035972-fd46b787-b532-47e2-bb6f-fd536a55a7ed.mov?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAVCODYLSA53PQK4ZA%2F20240505%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240505T172924Z&X-Amz-Expires=300&X-Amz-Signature=d680b26c532eeaf80740f08af3320d22ad0b8a4e4da1bcc4f33142c15b509eda&X-Amz-SignedHeaders=host&actor_id=24889239&key_id=0&repo_id=748713144
-
-
-Our script can also visualize datasets stored on a distant server. See `python lerobot/scripts/visualize_dataset.py --help` for more instructions.
+Or you can achieve the same result by executing our script from the command line:
+```bash
+python lerobot/scripts/visualize_dataset.py \
+env=aloha \
+task=sim_sim_transfer_cube_human \
+hydra.run.dir=outputs/visualize_dataset/example
+# >>> ['outputs/visualize_dataset/example/episode_0.mp4']
+```
 
 ### Evaluate a pretrained policy
 
-Check out [example 2](./examples/2_evaluate_pretrained_policy.py) that illustrates how to download a pretrained policy from Hugging Face hub, and run an evaluation on its corresponding environment.
-
-We also provide a more capable script to parallelize the evaluation over multiple environments during the same rollout. Here is an example with a pretrained model hosted on [lerobot/diffusion_pusht](https://huggingface.co/lerobot/diffusion_pusht):
-```bash
-python lerobot/scripts/eval.py \
-    -p lerobot/diffusion_pusht \
-    eval.n_episodes=10 \
-    eval.batch_size=10
+You can import our environment class, download pretrained policies from the HuggingFace hub, and use our rollout utilities with rendering:
+```python
+""" Copy pasted from `examples/2_evaluate_pretrained_policy.py`
+# TODO
 ```
 
-Note: After training your own policy, you can re-evaluate the checkpoints with:
+Or you can achieve the same result by executing our script from the command line:
 ```bash
 python lerobot/scripts/eval.py \
-    -p PATH/TO/TRAIN/OUTPUT/FOLDER
+--hub-id lerobot/diffusion_policy_pusht_image \
+eval_episodes=10 \
+hydra.run.dir=outputs/eval/example_hub
+```
+
+After launching training of your own policy, you can also re-evaluate the checkpoints with:
+```bash
+python lerobot/scripts/eval.py \
+--config PATH/TO/FOLDER/config.yaml \
+policy.pretrained_model_path=PATH/TO/FOLDER/weights.pth \
+eval_episodes=10 \
+hydra.run.dir=outputs/eval/example_dir
 ```
 
 See `python lerobot/scripts/eval.py --help` for more instructions.
 
 ### Train your own policy
 
-Check out [example 3](./examples/3_train_policy.py) that illustrates how to start training a model.
+You can import our dataset, environment, policy classes, and use our training utilities (if some data is missing, it will be automatically downloaded from HuggingFace hub):
+```python
+""" Copy pasted from `examples/3_train_policy.py`
+# TODO
+```
 
-In general, you can use our training script to easily train any policy. Here is an example of training the ACT policy on trajectories collected by humans on the Aloha simulation environment for the insertion task:
+Or you can achieve the same result by executing our script from the command line:
 ```bash
 python lerobot/scripts/train.py \
-    policy=act \
-    env=aloha \
-    env.task=AlohaInsertion-v0 \
-    dataset_repo_id=lerobot/aloha_sim_insertion_human \
+hydra.run.dir=outputs/train/example
 ```
 
-The experiment directory is automatically generated and will show up in yellow in your terminal. It looks like `outputs/train/2024-05-05/20-21-12_aloha_act_default`. You can manually specify an experiment directory by adding this argument to the `train.py` python command:
+You can easily train any policy on any environment:
 ```bash
-    hydra.run.dir=your/new/experiment/dir
+python lerobot/scripts/train.py \
+env=aloha \
+task=sim_insertion \
+dataset_id=aloha_sim_insertion_scripted \
+policy=act \
+hydra.run.dir=outputs/train/aloha_act
 ```
 
-To use wandb for logging training and evaluation curves, make sure you've run `wandb login` as a one-time setup step. Then, when running the training command above, enable WandB in the configuration by adding:
-
-```bash
-    wandb.enable=true
-```
-
-A link to the wandb logs for the run will also show up in yellow in your terminal. Here is an example of what they look like in your browser:
-
-![](media/wandb.png)
-
-Note: For efficiency, during training every checkpoint is evaluated on a low number of episodes. After training, you may want to re-evaluate your best checkpoints on more episodes or change the evaluation settings. See `python lerobot/scripts/eval.py --help` for more instructions.
-
 ## Contribute
 
-If you would like to contribute to 🤗 LeRobot, please check out our [contribution guide](https://github.com/huggingface/lerobot/blob/main/CONTRIBUTING.md).
+Feel free to open issues and PRs, and to coordinate your efforts with the community on our [Discord Channel](https://discord.gg/VjFz58wn3R). For specific inquiries, reach out to [Remi Cadene](remi.cadene@huggingface.co).
+
+### TODO
+
+If you are not sure how to contribute or want to know the next features we working on, look on this project page: [LeRobot TODO](https://github.com/orgs/huggingface/projects/46)
+
+### Follow our style
+
+```bash
+# install if needed
+pre-commit install
+# apply style and linter checks before git commit
+pre-commit
+```
+
+### Add dependencies
+
+Instead of using `pip` directly, we use `poetry` for development purposes to easily track our dependencies.
+If you don't have it already, follow the [instructions](https://python-poetry.org/docs/#installation) to install it.
+
+Install the project with:
+```bash
+poetry install
+```
+
+Then, the equivalent of `pip install some-package`, would just be:
+```bash
+poetry add some-package
+```
+
+**NOTE:** Currently, to ensure the CI works properly, any new package must also be added in the CPU-only environment dedicated to the CI. To do this, you should create a separate environment and add the new package there as well. For example:
+```bash
+# Add the new package to your main poetry env
+poetry add some-package
+# Add the same package to the CPU-only env dedicated to CI
+conda create -y -n lerobot-ci python=3.10
+conda activate lerobot-ci
+cd .github/poetry/cpu
+poetry add some-package
+```
+
+### Run tests locally
+
+Install [git lfs](https://git-lfs.com/) to retrieve test artifacts (if you don't have it already).
+
+On Mac:
+```bash
+brew install git-lfs
+git lfs install
+```
+
+On Ubuntu:
+```bash
+sudo apt-get install git-lfs
+git lfs install
+```
+
+Pull artifacts if they're not in [tests/data](tests/data)
+```bash
+git lfs pull
+```
+
+When adding a new dataset, mock it with
+```bash
+python tests/scripts/mock_dataset.py --in-data-dir data/$DATASET --out-data-dir tests/data/$DATASET
+```
+
+Run tests
+```bash
+DATA_DIR="tests/data" pytest -sx tests
+```
 
 ### Add a new dataset
 
-To add a dataset to the hub, you need to login using a write-access token, which can be generated from the [Hugging Face settings](https://huggingface.co/settings/tokens):
+To add a dataset to the hub, first login and use a token generated from [huggingface settings](https://huggingface.co/settings/tokens) with write access:
 ```bash
 huggingface-cli login --token ${HUGGINGFACE_TOKEN} --add-to-git-credential
 ```
 
-Then move your dataset folder in `data` directory (e.g. `data/aloha_static_pingpong_test`), and push your dataset to the hub with:
+Then you can upload it to the hub with:
 ```bash
-python lerobot/scripts/push_dataset_to_hub.py \
---data-dir data \
---dataset-id aloha_static_pingpong_test \
---raw-format aloha_hdf5 \
---community-id lerobot
+HF_HUB_ENABLE_HF_TRANSFER=1 huggingface-cli upload $HF_USER/$DATASET data/$DATASET \
+--repo-type dataset  \
+--revision v1.0
 ```
 
-See `python lerobot/scripts/push_dataset_to_hub.py --help` for more instructions.
+You will need to set the corresponding version as a default argument in your dataset class:
+```python
+  version: str | None = "v1.0",
+```
+See: [`lerobot/common/datasets/pusht.py`](https://github.com/Cadene/lerobot/blob/main/lerobot/common/datasets/pusht.py)
 
-If your dataset format is not supported, implement your own in `lerobot/common/datasets/push_dataset_to_hub/${raw_format}_format.py` by copying examples like [pusht_zarr](https://github.com/huggingface/lerobot/blob/main/lerobot/common/datasets/push_dataset_to_hub/pusht_zarr_format.py), [umi_zarr](https://github.com/huggingface/lerobot/blob/main/lerobot/common/datasets/push_dataset_to_hub/umi_zarr_format.py), [aloha_hdf5](https://github.com/huggingface/lerobot/blob/main/lerobot/common/datasets/push_dataset_to_hub/aloha_hdf5_format.py), or [xarm_pkl](https://github.com/huggingface/lerobot/blob/main/lerobot/common/datasets/push_dataset_to_hub/xarm_pkl_format.py).
+For instance, for [lerobot/pusht](https://huggingface.co/datasets/lerobot/pusht), we used:
+```bash
+HF_USER=lerobot
+DATASET=pusht
+```
 
+If you want to improve an existing dataset, you can download it locally with:
+```bash
+mkdir -p data/$DATASET
+HF_HUB_ENABLE_HF_TRANSFER=1 huggingface-cli download ${HF_USER}/$DATASET \
+--repo-type dataset \
+--local-dir data/$DATASET \
+--local-dir-use-symlinks=False \
+--revision v1.0
+```
+
+Iterate on your code and dataset with:
+```bash
+DATA_DIR=data python train.py
+```
+
+Upload a new version (v2.0 or v1.1 if the changes are respectively more or less significant):
+```bash
+HF_HUB_ENABLE_HF_TRANSFER=1 huggingface-cli upload $HF_USER/$DATASET data/$DATASET \
+--repo-type dataset \
+--revision v1.1 \
+--delete "*"
+```
+
+Then you will need to set the corresponding version as a default argument in your dataset class:
+```python
+  version: str | None = "v1.1",
+```
+See: [`lerobot/common/datasets/pusht.py`](https://github.com/Cadene/lerobot/blob/main/lerobot/common/datasets/pusht.py)
+
+
+Finally, you might want to mock the dataset if you need to update the unit tests as well:
+```bash
+python tests/scripts/mock_dataset.py --in-data-dir data/$DATASET --out-data-dir tests/data/$DATASET
+```
 
 ### Add a pretrained policy
 
-Once you have trained a policy you may upload it to the Hugging Face hub using a hub id that looks like `${hf_user}/${repo_name}` (e.g. [lerobot/diffusion_pusht](https://huggingface.co/lerobot/diffusion_pusht)).
+Once you have trained a policy you may upload it to the HuggingFace hub.
 
-You first need to find the checkpoint located inside your experiment directory (e.g. `outputs/train/2024-05-05/20-21-12_aloha_act_default/checkpoints/002500`). It should contain:
-- `config.json`: A serialized version of the policy configuration (following the policy's dataclass config).
-- `model.safetensors`: A set of `torch.nn.Module` parameters, saved in [Hugging Face Safetensors](https://huggingface.co/docs/safetensors/index) format.
-- `config.yaml`: A consolidated Hydra training configuration containing the policy, environment, and dataset configs. The policy configuration should match `config.json` exactly. The environment config is useful for anyone who wants to evaluate your policy. The dataset config just serves as a paper trail for reproducibility.
+Firstly, make sure you have a model repository set up on the hub. The hub ID looks like HF_USER/REPO_NAME.
 
-To upload these to the hub, run the following:
-```bash
-huggingface-cli upload ${hf_user}/${repo_name} path/to/checkpoint/dir
+Secondly, assuming you have trained a policy, you need:
+
+- `config.yaml` which you can get from the `.hydra` directory of your training output folder.
+- `model.pt` which should be one of the saved models in the `models` directory of your training output folder (they won't be named `model.pt` but you will need to choose one).
+- `stats.pth` which should point to the same file in the dataset directory (found in `data/{dataset_name}`).
+
+To upload these to the hub, prepare a folder with the following structure (you can use symlinks rather than copying):
+
+```
+to_upload
+    ├── config.yaml
+    ├── model.pt
+    └── stats.pth
 ```
 
-See [eval.py](https://github.com/huggingface/lerobot/blob/main/lerobot/scripts/eval.py) for an example of how other people may use your policy.
+With the folder prepared, run the following with a desired revision ID.
+
+```bash
+huggingface-cli upload $HUB_ID to_upload --revision $REVISION_ID
+```
+
+If you want this to be the default revision also run the following (don't worry, it won't upload the files again; it will just adjust the file pointers):
+
+```bash
+huggingface-cli upload $HUB_ID to_upload
+```
+
+See `eval.py` for an example of how a user may use your policy.
 
 
 ### Improve your code with profiling
@@ -252,14 +390,9 @@ with profile(
             # insert code to profile, potentially whole body of eval_policy function
 ```
 
-## Citation
-
-If you want, you can cite this work with:
-```
-@misc{cadene2024lerobot,
-    author = {Cadene, Remi and Alibert, Simon and Soare, Alexander and Gallouedec, Quentin and Zouitine, Adil and Wolf, Thomas},
-    title = {LeRobot: State-of-the-art Machine Learning for Real-World Robotics in Pytorch},
-    howpublished = "\url{https://github.com/huggingface/lerobot}",
-    year = {2024}
-}
+```bash
+python lerobot/scripts/eval.py \
+--config outputs/pusht/.hydra/config.yaml \
+pretrained_model_path=outputs/pusht/model.pt \
+eval_episodes=7
 ```

docker/lerobot-cpu/Dockerfile

@@ -1,31 +0,0 @@
-# Configure image
-ARG PYTHON_VERSION=3.10
-
-FROM python:${PYTHON_VERSION}-slim
-ARG PYTHON_VERSION
-ARG DEBIAN_FRONTEND=noninteractive
-
-# Install apt dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential cmake \
-    libglib2.0-0 libgl1-mesa-glx libegl1-mesa \
-    && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Create virtual environment
-RUN ln -s /usr/bin/python${PYTHON_VERSION} /usr/bin/python
-RUN python -m venv /opt/venv
-ENV PATH="/opt/venv/bin:$PATH"
-RUN echo "source /opt/venv/bin/activate" >> /root/.bashrc
-
-# Install LeRobot
-COPY . /lerobot
-WORKDIR /lerobot
-RUN pip install --upgrade --no-cache-dir pip
-RUN pip install --no-cache-dir ".[test, aloha, xarm, pusht]" \
-    --extra-index-url https://download.pytorch.org/whl/cpu
-
-# Set EGL as the rendering backend for MuJoCo
-ENV MUJOCO_GL="egl"
-
-# Execute in bash shell rather than python
-CMD ["/bin/bash"]

docker/lerobot-gpu/Dockerfile

@@ -1,33 +0,0 @@
-FROM nvidia/cuda:12.4.1-base-ubuntu22.04
-
-# Configure image
-ARG PYTHON_VERSION=3.10
-ARG DEBIAN_FRONTEND=noninteractive
-
-# Install apt dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential cmake \
-    git git-lfs openssh-client \
-    nano vim ffmpeg \
-    htop atop nvtop \
-    sed gawk grep curl wget \
-    tcpdump sysstat screen \
-    libglib2.0-0 libgl1-mesa-glx libegl1-mesa \
-    python${PYTHON_VERSION} python${PYTHON_VERSION}-venv \
-    && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Create virtual environment
-RUN ln -s /usr/bin/python${PYTHON_VERSION} /usr/bin/python
-RUN python -m venv /opt/venv
-ENV PATH="/opt/venv/bin:$PATH"
-RUN echo "source /opt/venv/bin/activate" >> /root/.bashrc
-
-# Install LeRobot
-RUN git lfs install
-RUN git clone https://github.com/huggingface/lerobot.git
-WORKDIR /lerobot
-RUN pip install --upgrade --no-cache-dir pip
-RUN pip install --no-cache-dir ".[test, aloha, xarm, pusht]"
-
-# Set EGL as the rendering backend for MuJoCo
-ENV MUJOCO_GL="egl"

envs/sim_aloha/README.md

@@ -0,0 +1 @@
+# ALOHA environment for LeRobot

envs/sim_aloha/aloha/assets/bimanual_viperx_end_effector_insertion.xml

@@ -0,0 +1,59 @@
+<mujoco>
+    <include file="scene.xml"/>
+    <include file="vx300s_dependencies.xml"/>
+
+    <equality>
+        <weld body1="mocap_left" body2="vx300s_left/gripper_link" solref="0.01 1" solimp=".25 .25 0.001" />
+        <weld body1="mocap_right" body2="vx300s_right/gripper_link" solref="0.01 1" solimp=".25 .25 0.001" />
+    </equality>
+
+
+    <worldbody>
+        <include file="vx300s_left.xml" />
+        <include file="vx300s_right.xml" />
+
+        <body mocap="true" name="mocap_left" pos="0.095 0.50 0.425">
+            <site pos="0 0 0" size="0.003 0.003 0.03" type="box" name="mocap_left_site1" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.003 0.03 0.003" type="box" name="mocap_left_site2" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.03 0.003 0.003" type="box" name="mocap_left_site3" rgba="1 0 0 1"/>
+        </body>
+        <body mocap="true" name="mocap_right" pos="-0.095 0.50 0.425">
+            <site pos="0 0 0" size="0.003 0.003 0.03" type="box" name="mocap_right_site1" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.003 0.03 0.003" type="box" name="mocap_right_site2" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.03 0.003 0.003" type="box" name="mocap_right_site3" rgba="1 0 0 1"/>
+        </body>
+
+        <body name="peg" pos="0.2 0.5 0.05">
+            <joint name="red_peg_joint" type="free" frictionloss="0.01" />
+            <inertial pos="0 0 0" mass="0.05" diaginertia="0.002 0.002 0.002" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.06 0.01 0.01" type="box" name="red_peg" rgba="1 0 0 1" />
+        </body>
+
+        <body name="socket" pos="-0.2 0.5 0.05">
+            <joint name="blue_socket_joint" type="free" frictionloss="0.01" />
+            <inertial pos="0 0 0" mass="0.05" diaginertia="0.002 0.002 0.002" />
+<!--            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.06 0.01 0.01" type="box" name="red_peg_ref" rgba="1 0 0 1" />-->
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 0 -0.02" size="0.06 0.018 0.002" type="box" name="socket-1" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 0 0.02" size="0.06 0.018 0.002" type="box" name="socket-2" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 0.02 0" size="0.06 0.002 0.018" type="box" name="socket-3" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 -0.02 0" size="0.06 0.002 0.018" type="box" name="socket-4" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.04 0.01 0.01" type="box" name="pin" rgba="1 0 0 1" />
+        </body>
+
+    </worldbody>
+
+    <actuator>
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_left/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_left/right_finger" kp="200"  user="1"/>
+
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_right/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_right/right_finger" kp="200"  user="1"/>
+
+    </actuator>
+
+    <keyframe>
+        <key qpos="0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0.2 0.5 0.05 1 0 0 0  -0.2 0.5 0.05 1 0 0 0"/>
+    </keyframe>
+
+
+</mujoco>

envs/sim_aloha/aloha/assets/bimanual_viperx_end_effector_transfer_cube.xml

@@ -0,0 +1,48 @@
+<mujoco>
+    <include file="scene.xml"/>
+    <include file="vx300s_dependencies.xml"/>
+
+    <equality>
+        <weld body1="mocap_left" body2="vx300s_left/gripper_link" solref="0.01 1" solimp=".25 .25 0.001" />
+        <weld body1="mocap_right" body2="vx300s_right/gripper_link" solref="0.01 1" solimp=".25 .25 0.001" />
+    </equality>
+
+
+    <worldbody>
+        <include file="vx300s_left.xml" />
+        <include file="vx300s_right.xml" />
+
+        <body mocap="true" name="mocap_left" pos="0.095 0.50 0.425">
+            <site pos="0 0 0" size="0.003 0.003 0.03" type="box" name="mocap_left_site1" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.003 0.03 0.003" type="box" name="mocap_left_site2" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.03 0.003 0.003" type="box" name="mocap_left_site3" rgba="1 0 0 1"/>
+        </body>
+        <body mocap="true" name="mocap_right" pos="-0.095 0.50 0.425">
+            <site pos="0 0 0" size="0.003 0.003 0.03" type="box" name="mocap_right_site1" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.003 0.03 0.003" type="box" name="mocap_right_site2" rgba="1 0 0 1"/>
+            <site pos="0 0 0" size="0.03 0.003 0.003" type="box" name="mocap_right_site3" rgba="1 0 0 1"/>
+        </body>
+
+        <body name="box" pos="0.2 0.5 0.05">
+            <joint name="red_box_joint" type="free" frictionloss="0.01" />
+            <inertial pos="0 0 0" mass="0.05" diaginertia="0.002 0.002 0.002" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.02 0.02 0.02" type="box" name="red_box" rgba="1 0 0 1" />
+        </body>
+
+    </worldbody>
+
+    <actuator>
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_left/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_left/right_finger" kp="200"  user="1"/>
+
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_right/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_right/right_finger" kp="200"  user="1"/>
+
+    </actuator>
+
+    <keyframe>
+        <key qpos="0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0.2 0.5 0.05 1 0 0 0"/>
+    </keyframe>
+
+
+</mujoco>

envs/sim_aloha/aloha/assets/bimanual_viperx_insertion.xml

@@ -0,0 +1,53 @@
+<mujoco>
+    <include file="scene.xml"/>
+    <include file="vx300s_dependencies.xml"/>
+    <worldbody>
+        <include file="vx300s_left.xml" />
+        <include file="vx300s_right.xml" />
+
+        <body name="peg" pos="0.2 0.5 0.05">
+            <joint name="red_peg_joint" type="free" frictionloss="0.01" />
+            <inertial pos="0 0 0" mass="0.05" diaginertia="0.002 0.002 0.002" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.06 0.01 0.01" type="box" name="red_peg" rgba="1 0 0 1" />
+        </body>
+
+        <body name="socket" pos="-0.2 0.5 0.05">
+            <joint name="blue_socket_joint" type="free" frictionloss="0.01" />
+            <inertial pos="0 0 0" mass="0.05" diaginertia="0.002 0.002 0.002" />
+<!--            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.06 0.01 0.01" type="box" name="red_peg_ref" rgba="1 0 0 1" />-->
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 0 -0.02" size="0.06 0.018 0.002" type="box" name="socket-1" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 0 0.02" size="0.06 0.018 0.002" type="box" name="socket-2" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 0.02 0" size="0.06 0.002 0.018" type="box" name="socket-3" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.05 0.001" pos="0 -0.02 0" size="0.06 0.002 0.018" type="box" name="socket-4" rgba="0 0 1 1" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.04 0.01 0.01" type="box" name="pin" rgba="1 0 0 1" />
+        </body>
+
+    </worldbody>
+
+    <actuator>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_left/waist" kp="800"  user="1" forcelimited="true" forcerange="-150 150"/>
+        <position ctrllimited="true" ctrlrange="-1.85005 1.25664" joint="vx300s_left/shoulder" kp="1600"  user="1" forcelimited="true" forcerange="-300 300"/>
+        <position ctrllimited="true" ctrlrange="-1.76278 1.6057" joint="vx300s_left/elbow" kp="800"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_left/forearm_roll" kp="10"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-1.8675 2.23402" joint="vx300s_left/wrist_angle" kp="50"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_left/wrist_rotate" kp="20"  user="1"/>
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_left/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_left/right_finger" kp="200"  user="1"/>
+
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_right/waist" kp="800"  user="1" forcelimited="true" forcerange="-150 150"/>
+        <position ctrllimited="true" ctrlrange="-1.85005 1.25664" joint="vx300s_right/shoulder" kp="1600"  user="1" forcelimited="true" forcerange="-300 300"/>
+        <position ctrllimited="true" ctrlrange="-1.76278 1.6057" joint="vx300s_right/elbow" kp="800"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_right/forearm_roll" kp="10"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-1.8675 2.23402" joint="vx300s_right/wrist_angle" kp="50"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_right/wrist_rotate" kp="20"  user="1"/>
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_right/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_right/right_finger" kp="200"  user="1"/>
+
+    </actuator>
+
+    <keyframe>
+        <key qpos="0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0.2 0.5 0.05 1 0 0 0  -0.2 0.5 0.05 1 0 0 0"/>
+    </keyframe>
+
+
+</mujoco>

envs/sim_aloha/aloha/assets/bimanual_viperx_transfer_cube.xml

@@ -0,0 +1,42 @@
+<mujoco>
+    <include file="scene.xml"/>
+    <include file="vx300s_dependencies.xml"/>
+    <worldbody>
+        <include file="vx300s_left.xml" />
+        <include file="vx300s_right.xml" />
+
+        <body name="box" pos="0.2 0.5 0.05">
+            <joint name="red_box_joint" type="free" frictionloss="0.01" />
+            <inertial pos="0 0 0" mass="0.05" diaginertia="0.002 0.002 0.002" />
+            <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0 0 0" size="0.02 0.02 0.02" type="box" name="red_box" rgba="1 0 0 1" />
+        </body>
+
+    </worldbody>
+
+    <actuator>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_left/waist" kp="800"  user="1" forcelimited="true" forcerange="-150 150"/>
+        <position ctrllimited="true" ctrlrange="-1.85005 1.25664" joint="vx300s_left/shoulder" kp="1600"  user="1" forcelimited="true" forcerange="-300 300"/>
+        <position ctrllimited="true" ctrlrange="-1.76278 1.6057" joint="vx300s_left/elbow" kp="800"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_left/forearm_roll" kp="10"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-1.8675 2.23402" joint="vx300s_left/wrist_angle" kp="50"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_left/wrist_rotate" kp="20"  user="1"/>
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_left/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_left/right_finger" kp="200"  user="1"/>
+
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_right/waist" kp="800"  user="1" forcelimited="true" forcerange="-150 150"/>
+        <position ctrllimited="true" ctrlrange="-1.85005 1.25664" joint="vx300s_right/shoulder" kp="1600"  user="1" forcelimited="true" forcerange="-300 300"/>
+        <position ctrllimited="true" ctrlrange="-1.76278 1.6057" joint="vx300s_right/elbow" kp="800"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_right/forearm_roll" kp="10"  user="1" forcelimited="true" forcerange="-100 100"/>
+        <position ctrllimited="true" ctrlrange="-1.8675 2.23402" joint="vx300s_right/wrist_angle" kp="50"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-3.14158 3.14158" joint="vx300s_right/wrist_rotate" kp="20"  user="1"/>
+        <position ctrllimited="true" ctrlrange="0.021 0.057" joint="vx300s_right/left_finger" kp="200"  user="1"/>
+        <position ctrllimited="true" ctrlrange="-0.057 -0.021" joint="vx300s_right/right_finger" kp="200"  user="1"/>
+
+    </actuator>
+
+    <keyframe>
+        <key qpos="0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0 -0.96 1.16 0 -0.3 0 0.024 -0.024  0.2 0.5 0.05 1 0 0 0"/>
+    </keyframe>
+
+
+</mujoco>

envs/sim_aloha/aloha/assets/scene.xml

@@ -0,0 +1,38 @@
+<mujocoinclude>
+<!--    <option timestep='0.0025' iterations="50" tolerance="1e-10" solver="Newton" jacobian="dense" cone="elliptic"/>-->
+
+    <asset>
+        <mesh file="tabletop.stl" name="tabletop" scale="0.001 0.001 0.001"/>
+    </asset>
+
+    <visual>
+        <map fogstart="1.5" fogend="5" force="0.1" znear="0.1"/>
+        <quality shadowsize="4096" offsamples="4"/>
+        <headlight ambient="0.4 0.4 0.4"/>
+    </visual>
+
+    <worldbody>
+        <light castshadow="false" directional='true' diffuse='.3 .3 .3' specular='0.3 0.3 0.3' pos='-1 -1 1'
+               dir='1 1 -1'/>
+        <light directional='true' diffuse='.3 .3 .3' specular='0.3 0.3 0.3' pos='1 -1 1' dir='-1 1 -1'/>
+        <light castshadow="false" directional='true' diffuse='.3 .3 .3' specular='0.3 0.3 0.3' pos='0 1 1'
+               dir='0 -1 -1'/>
+
+        <body name="table" pos="0 .6 0">
+            <geom group="1" mesh="tabletop" pos="0 0 0" type="mesh" conaffinity="1" contype="1" name="table" rgba="0.2 0.2 0.2 1" />
+        </body>
+        <body name="midair" pos="0 .6 0.2">
+            <site pos="0 0 0" size="0.01" type="sphere" name="midair" rgba="1 0 0 0"/>
+        </body>
+
+        <camera name="left_pillar" pos="-0.5 0.2 0.6" fovy="78" mode="targetbody" target="table"/>
+        <camera name="right_pillar" pos="0.5 0.2 0.6" fovy="78" mode="targetbody" target="table"/>
+        <camera name="top" pos="0 0.6 0.8" fovy="78" mode="targetbody" target="table"/>
+        <camera name="angle" pos="0 0 0.6" fovy="78" mode="targetbody" target="table"/>
+        <camera name="front_close" pos="0 0.2 0.4" fovy="78" mode="targetbody" target="vx300s_left/camera_focus"/>
+
+    </worldbody>
+
+
+
+</mujocoinclude>

envs/sim_aloha/aloha/assets/tabletop.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:76a1571d1aa36520f2bd81c268991b99816c2a7819464d718e0fd9976fe30dce
+size 684

envs/sim_aloha/aloha/assets/vx300s_10_custom_finger_left.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:df73ae5b9058e5d50a6409ac2ab687dade75053a86591bb5e23ab051dbf2d659
+size 83384

envs/sim_aloha/aloha/assets/vx300s_10_custom_finger_right.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:56fb3cc1236d4193106038adf8e457c7252ae9e86c7cee6dabf0578c53666358
+size 83384

envs/sim_aloha/aloha/assets/vx300s_10_gripper_finger.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a4baacd9a64df1be60ea5e98f50f3c660e1b7a1fe9684aace6004c5058c09483
+size 42884

envs/sim_aloha/aloha/assets/vx300s_11_ar_tag.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a18a1601074d29ed1d546ead70cd18fbb063f1db7b5b96b9f0365be714f3136a
+size 3884

envs/sim_aloha/aloha/assets/vx300s_1_base.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d100cafe656671ca8fde98fb6a4cf2d1b746995c51c61c25ad9ea2715635d146
+size 99984

envs/sim_aloha/aloha/assets/vx300s_2_shoulder.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:139745a74055cb0b23430bb5bc032bf68cf7bea5e4975c8f4c04107ae005f7f0
+size 63884

envs/sim_aloha/aloha/assets/vx300s_3_upper_arm.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:900f236320dd3d500870c5fde763b2d47502d51e043a5c377875e70237108729
+size 102984

envs/sim_aloha/aloha/assets/vx300s_4_upper_forearm.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4104fc54bbfb8a9b533029f1e7e3ade3d54d638372b3195daa0c98f57e0295b5
+size 49584

envs/sim_aloha/aloha/assets/vx300s_5_lower_forearm.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:66814e27fa728056416e25e02e89eb7d34c51d51c51e7c3df873829037ddc6b8
+size 99884

envs/sim_aloha/aloha/assets/vx300s_6_wrist.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90eb145c85627968c3776ae6de23ccff7e112c9dd713c46bc9acdfdaa859a048
+size 70784

envs/sim_aloha/aloha/assets/vx300s_7_gripper.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:786c1077bfd226f14219581b11d5f19464ca95b17132e0bb7532503568f5af90
+size 450084

envs/sim_aloha/aloha/assets/vx300s_8_gripper_prop.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d1275a93fe2157c83dbc095617fb7e672888bdd48ec070a35ef4ab9ebd9755b0
+size 31684

envs/sim_aloha/aloha/assets/vx300s_9_gripper_bar.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a4de62c9a2ed2c78433010e4c05530a1254b1774a7651967f406120c9bf8973e
+size 379484

envs/sim_aloha/aloha/assets/vx300s_dependencies.xml

@@ -0,0 +1,17 @@
+<mujocoinclude>
+    <compiler angle="radian" inertiafromgeom="auto" inertiagrouprange="4 5"/>
+    <asset>
+        <mesh name="vx300s_1_base" file="vx300s_1_base.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_2_shoulder" file="vx300s_2_shoulder.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_3_upper_arm" file="vx300s_3_upper_arm.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_4_upper_forearm" file="vx300s_4_upper_forearm.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_5_lower_forearm" file="vx300s_5_lower_forearm.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_6_wrist" file="vx300s_6_wrist.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_7_gripper" file="vx300s_7_gripper.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_8_gripper_prop" file="vx300s_8_gripper_prop.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_9_gripper_bar" file="vx300s_9_gripper_bar.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_10_gripper_finger_left" file="vx300s_10_custom_finger_left.stl" scale="0.001 0.001 0.001" />
+        <mesh name="vx300s_10_gripper_finger_right" file="vx300s_10_custom_finger_right.stl" scale="0.001 0.001 0.001" />
+    </asset>
+
+</mujocoinclude>

envs/sim_aloha/aloha/assets/vx300s_left.xml

@@ -0,0 +1,59 @@
+
+<mujocoinclude>
+    <body name="vx300s_left" pos="-0.469 0.5 0">
+        <geom quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_1_base" name="vx300s_left/1_base" contype="0" conaffinity="0"/>
+        <body name="vx300s_left/shoulder_link" pos="0 0 0.079">
+            <inertial pos="0.000259233 -3.3552e-06 0.0116129" quat="-0.476119 0.476083 0.52279 0.522826" mass="0.798614" diaginertia="0.00120156 0.00113744 0.0009388" />
+            <joint name="vx300s_left/waist" pos="0 0 0" axis="0 0 1" limited="true" range="-3.14158 3.14158" frictionloss="50" />
+            <geom pos="0 0 -0.003" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_2_shoulder" name="vx300s_left/2_shoulder" />
+            <body name="vx300s_left/upper_arm_link" pos="0 0 0.04805">
+                <inertial pos="0.0206949 4e-10 0.226459" quat="0 0.0728458 0 0.997343" mass="0.792592" diaginertia="0.00911338 0.008925 0.000759317" />
+                <joint name="vx300s_left/shoulder" pos="0 0 0" axis="0 1 0" limited="true" range="-1.85005 1.25664" frictionloss="60" />
+                <geom quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_3_upper_arm" name="vx300s_left/3_upper_arm"/>
+                <body name="vx300s_left/upper_forearm_link" pos="0.05955 0 0.3">
+                    <inertial pos="0.105723 0 0" quat="-0.000621631 0.704724 0.0105292 0.709403" mass="0.322228" diaginertia="0.00144107 0.00134228 0.000152047" />
+                    <joint name="vx300s_left/elbow" pos="0 0 0" axis="0 1 0" limited="true" range="-1.76278 1.6057" frictionloss="60" />
+                    <geom type="mesh" mesh="vx300s_4_upper_forearm" name="vx300s_left/4_upper_forearm" />
+                    <body name="vx300s_left/lower_forearm_link" pos="0.2 0 0">
+                        <inertial pos="0.0513477 0.00680462 0" quat="-0.702604 -0.0796724 -0.702604 0.0796724" mass="0.414823" diaginertia="0.0005911 0.000546493 0.000155707" />
+                        <joint name="vx300s_left/forearm_roll" pos="0 0 0" axis="1 0 0" limited="true" range="-3.14158 3.14158" frictionloss="30" />
+                        <geom quat="0 1 0 0" type="mesh" mesh="vx300s_5_lower_forearm" name="vx300s_left/5_lower_forearm"/>
+                        <body name="vx300s_left/wrist_link" pos="0.1 0 0">
+                            <inertial pos="0.046743 -7.6652e-06 0.010565" quat="-0.00100191 0.544586 0.0026583 0.8387" mass="0.115395" diaginertia="5.45707e-05 4.63101e-05 4.32692e-05" />
+                            <joint name="vx300s_left/wrist_angle" pos="0 0 0" axis="0 1 0" limited="true" range="-1.8675 2.23402" frictionloss="30" />
+                            <geom quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_6_wrist" name="vx300s_left/6_wrist" />
+                            <body name="vx300s_left/gripper_link" pos="0.069744 0 0">
+                                <body name="vx300s_left/camera_focus" pos="0.15 0 0.01">
+                                    <site pos="0 0 0" size="0.01" type="sphere" name="left_cam_focus" rgba="0 0 1 0"/>
+                                </body>
+                                <site pos="0.15 0 0" size="0.003 0.003 0.03" type="box" name="cali_left_site1" rgba="0 0 1 0"/>
+                                <site pos="0.15 0 0" size="0.003 0.03 0.003" type="box" name="cali_left_site2" rgba="0 0 1 0"/>
+                                <site pos="0.15 0 0" size="0.03 0.003 0.003" type="box" name="cali_left_site3" rgba="0 0 1 0"/>
+                                <camera name="left_wrist" pos="-0.1 0 0.16" fovy="20" mode="targetbody" target="vx300s_left/camera_focus"/>
+                                <inertial pos="0.0395662 -2.56311e-07 0.00400649" quat="0.62033 0.619916 -0.339682 0.339869" mass="0.251652" diaginertia="0.000689546 0.000650316 0.000468142" />
+                                <joint name="vx300s_left/wrist_rotate" pos="0 0 0" axis="1 0 0" limited="true" range="-3.14158 3.14158" frictionloss="30" />
+                                <geom pos="-0.02 0 0" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_7_gripper" name="vx300s_left/7_gripper" />
+                                <geom pos="-0.020175 0 0" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_9_gripper_bar" name="vx300s_left/9_gripper_bar" />
+                                <body name="vx300s_left/gripper_prop_link" pos="0.0485 0 0">
+                                    <inertial pos="0.002378 2.85e-08 0" quat="0 0 0.897698 0.440611" mass="0.008009" diaginertia="4.2979e-06 2.8868e-06 1.5314e-06" />
+<!--                                    <joint name="vx300s_left/gripper" pos="0 0 0" axis="1 0 0" frictionloss="30" />-->
+                                    <geom pos="-0.0685 0 0" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_8_gripper_prop" name="vx300s_left/8_gripper_prop" />
+                                </body>
+                                <body name="vx300s_left/left_finger_link" pos="0.0687 0 0">
+                                    <inertial pos="0.017344 -0.0060692 0" quat="0.449364 0.449364 -0.54596 -0.54596" mass="0.034796" diaginertia="2.48003e-05 1.417e-05 1.20797e-05" />
+                                    <joint name="vx300s_left/left_finger" pos="0 0 0" axis="0 1 0" type="slide" limited="true" range="0.021 0.057" frictionloss="30" />
+                                    <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0.005 -0.052 0" euler="3.14 1.57 0" type="mesh" mesh="vx300s_10_gripper_finger_left" name="vx300s_left/10_left_gripper_finger"/>
+                                </body>
+                                <body name="vx300s_left/right_finger_link" pos="0.0687 0 0">
+                                    <inertial pos="0.017344 0.0060692 0" quat="0.44937 -0.44937 0.545955 -0.545955" mass="0.034796" diaginertia="2.48002e-05 1.417e-05 1.20798e-05" />
+                                    <joint name="vx300s_left/right_finger" pos="0 0 0" axis="0 1 0" type="slide" limited="true" range="-0.057 -0.021" frictionloss="30" />
+                                    <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0.005 0.052 0" euler="3.14 1.57 0" type="mesh" mesh="vx300s_10_gripper_finger_right" name="vx300s_left/10_right_gripper_finger"/>
+                                </body>
+                            </body>
+                        </body>
+                    </body>
+                </body>
+            </body>
+        </body>
+    </body>
+</mujocoinclude>

envs/sim_aloha/aloha/assets/vx300s_right.xml

@@ -0,0 +1,59 @@
+
+<mujocoinclude>
+    <body name="vx300s_right" pos="0.469 0.5 0" euler="0 0 3.1416">
+        <geom quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_1_base" name="vx300s_right/1_base" contype="0" conaffinity="0"/>
+        <body name="vx300s_right/shoulder_link" pos="0 0 0.079">
+            <inertial pos="0.000259233 -3.3552e-06 0.0116129" quat="-0.476119 0.476083 0.52279 0.522826" mass="0.798614" diaginertia="0.00120156 0.00113744 0.0009388" />
+            <joint name="vx300s_right/waist" pos="0 0 0" axis="0 0 1" limited="true" range="-3.14158 3.14158" frictionloss="50" />
+            <geom pos="0 0 -0.003" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_2_shoulder" name="vx300s_right/2_shoulder" />
+            <body name="vx300s_right/upper_arm_link" pos="0 0 0.04805">
+                <inertial pos="0.0206949 4e-10 0.226459" quat="0 0.0728458 0 0.997343" mass="0.792592" diaginertia="0.00911338 0.008925 0.000759317" />
+                <joint name="vx300s_right/shoulder" pos="0 0 0" axis="0 1 0" limited="true" range="-1.85005 1.25664" frictionloss="60" />
+                <geom quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_3_upper_arm" name="vx300s_right/3_upper_arm"/>
+                <body name="vx300s_right/upper_forearm_link" pos="0.05955 0 0.3">
+                    <inertial pos="0.105723 0 0" quat="-0.000621631 0.704724 0.0105292 0.709403" mass="0.322228" diaginertia="0.00144107 0.00134228 0.000152047" />
+                    <joint name="vx300s_right/elbow" pos="0 0 0" axis="0 1 0" limited="true" range="-1.76278 1.6057" frictionloss="60" />
+                    <geom type="mesh" mesh="vx300s_4_upper_forearm" name="vx300s_right/4_upper_forearm" />
+                    <body name="vx300s_right/lower_forearm_link" pos="0.2 0 0">
+                        <inertial pos="0.0513477 0.00680462 0" quat="-0.702604 -0.0796724 -0.702604 0.0796724" mass="0.414823" diaginertia="0.0005911 0.000546493 0.000155707" />
+                        <joint name="vx300s_right/forearm_roll" pos="0 0 0" axis="1 0 0" limited="true" range="-3.14158 3.14158" frictionloss="30" />
+                        <geom quat="0 1 0 0" type="mesh" mesh="vx300s_5_lower_forearm" name="vx300s_right/5_lower_forearm"/>
+                        <body name="vx300s_right/wrist_link" pos="0.1 0 0">
+                            <inertial pos="0.046743 -7.6652e-06 0.010565" quat="-0.00100191 0.544586 0.0026583 0.8387" mass="0.115395" diaginertia="5.45707e-05 4.63101e-05 4.32692e-05" />
+                            <joint name="vx300s_right/wrist_angle" pos="0 0 0" axis="0 1 0" limited="true" range="-1.8675 2.23402" frictionloss="30" />
+                            <geom quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_6_wrist" name="vx300s_right/6_wrist" />
+                            <body name="vx300s_right/gripper_link" pos="0.069744 0 0">
+                                <body name="vx300s_right/camera_focus" pos="0.15 0 0.01">
+                                    <site pos="0 0 0" size="0.01" type="sphere" name="right_cam_focus" rgba="0 0 1 0"/>
+                                </body>
+                                <site pos="0.15 0 0" size="0.003 0.003 0.03" type="box" name="cali_right_site1" rgba="0 0 1 0"/>
+                                <site pos="0.15 0 0" size="0.003 0.03 0.003" type="box" name="cali_right_site2" rgba="0 0 1 0"/>
+                                <site pos="0.15 0 0" size="0.03 0.003 0.003" type="box" name="cali_right_site3" rgba="0 0 1 0"/>
+                                <camera name="right_wrist" pos="-0.1 0 0.16" fovy="20" mode="targetbody" target="vx300s_right/camera_focus"/>
+                                <inertial pos="0.0395662 -2.56311e-07 0.00400649" quat="0.62033 0.619916 -0.339682 0.339869" mass="0.251652" diaginertia="0.000689546 0.000650316 0.000468142" />
+                                <joint name="vx300s_right/wrist_rotate" pos="0 0 0" axis="1 0 0" limited="true" range="-3.14158 3.14158" frictionloss="30" />
+                                <geom pos="-0.02 0 0" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_7_gripper" name="vx300s_right/7_gripper" />
+                                <geom pos="-0.020175 0 0" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_9_gripper_bar" name="vx300s_right/9_gripper_bar" />
+                                <body name="vx300s_right/gripper_prop_link" pos="0.0485 0 0">
+                                    <inertial pos="0.002378 2.85e-08 0" quat="0 0 0.897698 0.440611" mass="0.008009" diaginertia="4.2979e-06 2.8868e-06 1.5314e-06" />
+<!--                                    <joint name="vx300s_right/gripper" pos="0 0 0" axis="1 0 0" frictionloss="30" />-->
+                                    <geom pos="-0.0685 0 0" quat="0.707107 0 0 0.707107" type="mesh" mesh="vx300s_8_gripper_prop" name="vx300s_right/8_gripper_prop" />
+                                </body>
+                                <body name="vx300s_right/left_finger_link" pos="0.0687 0 0">
+                                    <inertial pos="0.017344 -0.0060692 0" quat="0.449364 0.449364 -0.54596 -0.54596" mass="0.034796" diaginertia="2.48003e-05 1.417e-05 1.20797e-05" />
+                                    <joint name="vx300s_right/left_finger" pos="0 0 0" axis="0 1 0" type="slide" limited="true" range="0.021 0.057" frictionloss="30" />
+                                    <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0.005 -0.052 0" euler="3.14 1.57 0" type="mesh" mesh="vx300s_10_gripper_finger_left" name="vx300s_right/10_left_gripper_finger"/>
+                                </body>
+                                <body name="vx300s_right/right_finger_link" pos="0.0687 0 0">
+                                    <inertial pos="0.017344 0.0060692 0" quat="0.44937 -0.44937 0.545955 -0.545955" mass="0.034796" diaginertia="2.48002e-05 1.417e-05 1.20798e-05" />
+                                    <joint name="vx300s_right/right_finger" pos="0 0 0" axis="0 1 0" type="slide" limited="true" range="-0.057 -0.021" frictionloss="30" />
+                                    <geom condim="4" solimp="2 1 0.01" solref="0.01 1" friction="1 0.005 0.0001" pos="0.005 0.052 0" euler="3.14 1.57 0" type="mesh" mesh="vx300s_10_gripper_finger_right" name="vx300s_right/10_right_gripper_finger"/>
+                                </body>
+                            </body>
+                        </body>
+                    </body>
+                </body>
+            </body>
+        </body>
+    </body>
+</mujocoinclude>

envs/sim_aloha/aloha/constants.py

@@ -0,0 +1,163 @@
+from pathlib import Path
+
+### Simulation envs fixed constants
+DT = 0.02  # 0.02 ms -> 1/0.2 = 50 hz
+FPS = 50
+
+
+JOINTS = [
+    # absolute joint position
+    "left_arm_waist",
+    "left_arm_shoulder",
+    "left_arm_elbow",
+    "left_arm_forearm_roll",
+    "left_arm_wrist_angle",
+    "left_arm_wrist_rotate",
+    # normalized gripper position 0: close, 1: open
+    "left_arm_gripper",
+    # absolute joint position
+    "right_arm_waist",
+    "right_arm_shoulder",
+    "right_arm_elbow",
+    "right_arm_forearm_roll",
+    "right_arm_wrist_angle",
+    "right_arm_wrist_rotate",
+    # normalized gripper position 0: close, 1: open
+    "right_arm_gripper",
+]
+
+ACTIONS = [
+    # position and quaternion for end effector
+    "left_arm_waist",
+    "left_arm_shoulder",
+    "left_arm_elbow",
+    "left_arm_forearm_roll",
+    "left_arm_wrist_angle",
+    "left_arm_wrist_rotate",
+    # normalized gripper position (0: close, 1: open)
+    "left_arm_gripper",
+    "right_arm_waist",
+    "right_arm_shoulder",
+    "right_arm_elbow",
+    "right_arm_forearm_roll",
+    "right_arm_wrist_angle",
+    "right_arm_wrist_rotate",
+    # normalized gripper position (0: close, 1: open)
+    "right_arm_gripper",
+]
+
+
+START_ARM_POSE = [
+    0,
+    -0.96,
+    1.16,
+    0,
+    -0.3,
+    0,
+    0.02239,
+    -0.02239,
+    0,
+    -0.96,
+    1.16,
+    0,
+    -0.3,
+    0,
+    0.02239,
+    -0.02239,
+]
+
+ASSETS_DIR = Path(__file__).parent.resolve() / "assets"  # note: absolute path
+
+# Left finger position limits (qpos[7]), right_finger = -1 * left_finger
+MASTER_GRIPPER_POSITION_OPEN = 0.02417
+MASTER_GRIPPER_POSITION_CLOSE = 0.01244
+PUPPET_GRIPPER_POSITION_OPEN = 0.05800
+PUPPET_GRIPPER_POSITION_CLOSE = 0.01844
+
+# Gripper joint limits (qpos[6])
+MASTER_GRIPPER_JOINT_OPEN = 0.3083
+MASTER_GRIPPER_JOINT_CLOSE = -0.6842
+PUPPET_GRIPPER_JOINT_OPEN = 1.4910
+PUPPET_GRIPPER_JOINT_CLOSE = -0.6213
+
+MASTER_GRIPPER_JOINT_MID = (MASTER_GRIPPER_JOINT_OPEN + MASTER_GRIPPER_JOINT_CLOSE) / 2
+
+############################ Helper functions ############################
+
+
+def normalize_master_gripper_position(x):
+    return (x - MASTER_GRIPPER_POSITION_CLOSE) / (
+        MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE
+    )
+
+
+def normalize_puppet_gripper_position(x):
+    return (x - PUPPET_GRIPPER_POSITION_CLOSE) / (
+        PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE
+    )
+
+
+def unnormalize_master_gripper_position(x):
+    return x * (MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE) + MASTER_GRIPPER_POSITION_CLOSE
+
+
+def unnormalize_puppet_gripper_position(x):
+    return x * (PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE) + PUPPET_GRIPPER_POSITION_CLOSE
+
+
+def convert_position_from_master_to_puppet(x):
+    return unnormalize_puppet_gripper_position(normalize_master_gripper_position(x))
+
+
+def normalizer_master_gripper_joint(x):
+    return (x - MASTER_GRIPPER_JOINT_CLOSE) / (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE)
+
+
+def normalize_puppet_gripper_joint(x):
+    return (x - PUPPET_GRIPPER_JOINT_CLOSE) / (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE)
+
+
+def unnormalize_master_gripper_joint(x):
+    return x * (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE) + MASTER_GRIPPER_JOINT_CLOSE
+
+
+def unnormalize_puppet_gripper_joint(x):
+    return x * (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE) + PUPPET_GRIPPER_JOINT_CLOSE
+
+
+def convert_join_from_master_to_puppet(x):
+    return unnormalize_puppet_gripper_joint(normalizer_master_gripper_joint(x))
+
+
+def normalize_master_gripper_velocity(x):
+    return x / (MASTER_GRIPPER_POSITION_OPEN - MASTER_GRIPPER_POSITION_CLOSE)
+
+
+def normalize_puppet_gripper_velocity(x):
+    return x / (PUPPET_GRIPPER_POSITION_OPEN - PUPPET_GRIPPER_POSITION_CLOSE)
+
+
+def convert_master_from_position_to_joint(x):
+    return (
+        normalize_master_gripper_position(x) * (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE)
+        + MASTER_GRIPPER_JOINT_CLOSE
+    )
+
+
+def convert_master_from_joint_to_position(x):
+    return unnormalize_master_gripper_position(
+        (x - MASTER_GRIPPER_JOINT_CLOSE) / (MASTER_GRIPPER_JOINT_OPEN - MASTER_GRIPPER_JOINT_CLOSE)
+    )
+
+
+def convert_puppet_from_position_to_join(x):
+    return (
+        normalize_puppet_gripper_position(x) * (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE)
+        + PUPPET_GRIPPER_JOINT_CLOSE
+    )
+
+
+def convert_puppet_from_joint_to_position(x):
+    return unnormalize_puppet_gripper_position(
+        (x - PUPPET_GRIPPER_JOINT_CLOSE) / (PUPPET_GRIPPER_JOINT_OPEN - PUPPET_GRIPPER_JOINT_CLOSE)
+    )

envs/sim_aloha/aloha/env.py

@@ -0,0 +1,40 @@
+from dm_control import mujoco
+from dm_control.rl import control
+
+from aloha.constants import ASSETS_DIR, DT
+from aloha.tasks.sim import InsertionTask, TransferCubeTask
+from aloha.tasks.sim_end_effector import (
+    InsertionEndEffectorTask,
+    TransferCubeEndEffectorTask,
+)
+
+
+def make_env_task(task_name):
+    # time limit is controlled by StepCounter in env factory
+    time_limit = float("inf")
+
+    if "sim_transfer_cube" in task_name:
+        xml_path = ASSETS_DIR / "bimanual_viperx_transfer_cube.xml"
+        physics = mujoco.Physics.from_xml_path(str(xml_path))
+        task = TransferCubeTask(random=False)
+    elif "sim_insertion" in task_name:
+        xml_path = ASSETS_DIR / "bimanual_viperx_insertion.xml"
+        physics = mujoco.Physics.from_xml_path(str(xml_path))
+        task = InsertionTask(random=False)
+    elif "sim_end_effector_transfer_cube" in task_name:
+        raise NotImplementedError()
+        xml_path = ASSETS_DIR / "bimanual_viperx_end_effector_transfer_cube.xml"
+        physics = mujoco.Physics.from_xml_path(str(xml_path))
+        task = TransferCubeEndEffectorTask(random=False)
+    elif "sim_end_effector_insertion" in task_name:
+        raise NotImplementedError()
+        xml_path = ASSETS_DIR / "bimanual_viperx_end_effector_insertion.xml"
+        physics = mujoco.Physics.from_xml_path(str(xml_path))
+        task = InsertionEndEffectorTask(random=False)
+    else:
+        raise NotImplementedError(task_name)
+
+    env = control.Environment(
+        physics, task, time_limit, control_timestep=DT, n_sub_steps=None, flat_observation=False
+    )
+    return env

envs/sim_aloha/aloha/tasks/sim.py

@@ -0,0 +1,218 @@
+import collections
+
+import numpy as np
+from aloha.constants import (
+    START_ARM_POSE,
+    normalize_puppet_gripper_position,
+    normalize_puppet_gripper_velocity,
+    unnormalize_puppet_gripper_position,
+)
+from dm_control.suite import base
+
+BOX_POSE = [None]  # to be changed from outside
+
+"""
+Environment for simulated robot bi-manual manipulation, with joint position control
+Action space:      [left_arm_qpos (6),             # absolute joint position
+                    left_gripper_positions (1),    # normalized gripper position (0: close, 1: open)
+                    right_arm_qpos (6),            # absolute joint position
+                    right_gripper_positions (1),]  # normalized gripper position (0: close, 1: open)
+
+Observation space: {"qpos": Concat[ left_arm_qpos (6),         # absolute joint position
+                                    left_gripper_position (1),  # normalized gripper position (0: close, 1: open)
+                                    right_arm_qpos (6),         # absolute joint position
+                                    right_gripper_qpos (1)]     # normalized gripper position (0: close, 1: open)
+                    "qvel": Concat[ left_arm_qvel (6),         # absolute joint velocity (rad)
+                                    left_gripper_velocity (1),  # normalized gripper velocity (pos: opening, neg: closing)
+                                    right_arm_qvel (6),         # absolute joint velocity (rad)
+                                    right_gripper_qvel (1)]     # normalized gripper velocity (pos: opening, neg: closing)
+                    "images": {"main": (480x640x3)}        # h, w, c, dtype='uint8'
+"""
+
+
+class BimanualViperXTask(base.Task):
+    def __init__(self, random=None):
+        super().__init__(random=random)
+
+    def before_step(self, action, physics):
+        left_arm_action = action[:6]
+        right_arm_action = action[7 : 7 + 6]
+        normalized_left_gripper_action = action[6]
+        normalized_right_gripper_action = action[7 + 6]
+
+        left_gripper_action = unnormalize_puppet_gripper_position(normalized_left_gripper_action)
+        right_gripper_action = unnormalize_puppet_gripper_position(normalized_right_gripper_action)
+
+        full_left_gripper_action = [left_gripper_action, -left_gripper_action]
+        full_right_gripper_action = [right_gripper_action, -right_gripper_action]
+
+        env_action = np.concatenate(
+            [left_arm_action, full_left_gripper_action, right_arm_action, full_right_gripper_action]
+        )
+        super().before_step(env_action, physics)
+        return
+
+    def initialize_episode(self, physics):
+        """Sets the state of the environment at the start of each episode."""
+        super().initialize_episode(physics)
+
+    @staticmethod
+    def get_qpos(physics):
+        qpos_raw = physics.data.qpos.copy()
+        left_qpos_raw = qpos_raw[:8]
+        right_qpos_raw = qpos_raw[8:16]
+        left_arm_qpos = left_qpos_raw[:6]
+        right_arm_qpos = right_qpos_raw[:6]
+        left_gripper_qpos = [normalize_puppet_gripper_position(left_qpos_raw[6])]
+        right_gripper_qpos = [normalize_puppet_gripper_position(right_qpos_raw[6])]
+        return np.concatenate([left_arm_qpos, left_gripper_qpos, right_arm_qpos, right_gripper_qpos])
+
+    @staticmethod
+    def get_qvel(physics):
+        qvel_raw = physics.data.qvel.copy()
+        left_qvel_raw = qvel_raw[:8]
+        right_qvel_raw = qvel_raw[8:16]
+        left_arm_qvel = left_qvel_raw[:6]
+        right_arm_qvel = right_qvel_raw[:6]
+        left_gripper_qvel = [normalize_puppet_gripper_velocity(left_qvel_raw[6])]
+        right_gripper_qvel = [normalize_puppet_gripper_velocity(right_qvel_raw[6])]
+        return np.concatenate([left_arm_qvel, left_gripper_qvel, right_arm_qvel, right_gripper_qvel])
+
+    @staticmethod
+    def get_env_state(physics):
+        raise NotImplementedError
+
+    def get_observation(self, physics):
+        obs = collections.OrderedDict()
+        obs["qpos"] = self.get_qpos(physics)
+        obs["qvel"] = self.get_qvel(physics)
+        obs["env_state"] = self.get_env_state(physics)
+        obs["images"] = {}
+        obs["images"]["top"] = physics.render(height=480, width=640, camera_id="top")
+        obs["images"]["angle"] = physics.render(height=480, width=640, camera_id="angle")
+        obs["images"]["vis"] = physics.render(height=480, width=640, camera_id="front_close")
+
+        return obs
+
+    def get_reward(self, physics):
+        # return whether left gripper is holding the box
+        raise NotImplementedError
+
+
+class TransferCubeTask(BimanualViperXTask):
+    def __init__(self, random=None):
+        super().__init__(random=random)
+        self.max_reward = 4
+
+    def initialize_episode(self, physics):
+        """Sets the state of the environment at the start of each episode."""
+        # TODO Notice: this function does not randomize the env configuration. Instead, set BOX_POSE from outside
+        # reset qpos, control and box position
+        with physics.reset_context():
+            physics.named.data.qpos[:16] = START_ARM_POSE
+            np.copyto(physics.data.ctrl, START_ARM_POSE)
+            assert BOX_POSE[0] is not None
+            physics.named.data.qpos[-7:] = BOX_POSE[0]
+            # print(f"{BOX_POSE=}")
+        super().initialize_episode(physics)
+
+    @staticmethod
+    def get_env_state(physics):
+        env_state = physics.data.qpos.copy()[16:]
+        return env_state
+
+    def get_reward(self, physics):
+        # return whether left gripper is holding the box
+        all_contact_pairs = []
+        for i_contact in range(physics.data.ncon):
+            id_geom_1 = physics.data.contact[i_contact].geom1
+            id_geom_2 = physics.data.contact[i_contact].geom2
+            name_geom_1 = physics.model.id2name(id_geom_1, "geom")
+            name_geom_2 = physics.model.id2name(id_geom_2, "geom")
+            contact_pair = (name_geom_1, name_geom_2)
+            all_contact_pairs.append(contact_pair)
+
+        touch_left_gripper = ("red_box", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+        touch_right_gripper = ("red_box", "vx300s_right/10_right_gripper_finger") in all_contact_pairs
+        touch_table = ("red_box", "table") in all_contact_pairs
+
+        reward = 0
+        if touch_right_gripper:
+            reward = 1
+        if touch_right_gripper and not touch_table:  # lifted
+            reward = 2
+        if touch_left_gripper:  # attempted transfer
+            reward = 3
+        if touch_left_gripper and not touch_table:  # successful transfer
+            reward = 4
+        return reward
+
+
+class InsertionTask(BimanualViperXTask):
+    def __init__(self, random=None):
+        super().__init__(random=random)
+        self.max_reward = 4
+
+    def initialize_episode(self, physics):
+        """Sets the state of the environment at the start of each episode."""
+        # TODO Notice: this function does not randomize the env configuration. Instead, set BOX_POSE from outside
+        # reset qpos, control and box position
+        with physics.reset_context():
+            physics.named.data.qpos[:16] = START_ARM_POSE
+            np.copyto(physics.data.ctrl, START_ARM_POSE)
+            assert BOX_POSE[0] is not None
+            physics.named.data.qpos[-7 * 2 :] = BOX_POSE[0]  # two objects
+            # print(f"{BOX_POSE=}")
+        super().initialize_episode(physics)
+
+    @staticmethod
+    def get_env_state(physics):
+        env_state = physics.data.qpos.copy()[16:]
+        return env_state
+
+    def get_reward(self, physics):
+        # return whether peg touches the pin
+        all_contact_pairs = []
+        for i_contact in range(physics.data.ncon):
+            id_geom_1 = physics.data.contact[i_contact].geom1
+            id_geom_2 = physics.data.contact[i_contact].geom2
+            name_geom_1 = physics.model.id2name(id_geom_1, "geom")
+            name_geom_2 = physics.model.id2name(id_geom_2, "geom")
+            contact_pair = (name_geom_1, name_geom_2)
+            all_contact_pairs.append(contact_pair)
+
+        touch_right_gripper = ("red_peg", "vx300s_right/10_right_gripper_finger") in all_contact_pairs
+        touch_left_gripper = (
+            ("socket-1", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+            or ("socket-2", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+            or ("socket-3", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+            or ("socket-4", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+        )
+
+        peg_touch_table = ("red_peg", "table") in all_contact_pairs
+        socket_touch_table = (
+            ("socket-1", "table") in all_contact_pairs
+            or ("socket-2", "table") in all_contact_pairs
+            or ("socket-3", "table") in all_contact_pairs
+            or ("socket-4", "table") in all_contact_pairs
+        )
+        peg_touch_socket = (
+            ("red_peg", "socket-1") in all_contact_pairs
+            or ("red_peg", "socket-2") in all_contact_pairs
+            or ("red_peg", "socket-3") in all_contact_pairs
+            or ("red_peg", "socket-4") in all_contact_pairs
+        )
+        pin_touched = ("red_peg", "pin") in all_contact_pairs
+
+        reward = 0
+        if touch_left_gripper and touch_right_gripper:  # touch both
+            reward = 1
+        if (
+            touch_left_gripper and touch_right_gripper and (not peg_touch_table) and (not socket_touch_table)
+        ):  # grasp both
+            reward = 2
+        if peg_touch_socket and (not peg_touch_table) and (not socket_touch_table):  # peg and socket touching
+            reward = 3
+        if pin_touched:  # successful insertion
+            reward = 4
+        return reward

envs/sim_aloha/aloha/tasks/sim_end_effector.py

@@ -0,0 +1,262 @@
+import collections
+
+import numpy as np
+from aloha.constants import (
+    PUPPET_GRIPPER_POSITION_CLOSE,
+    START_ARM_POSE,
+    normalize_puppet_gripper_position,
+    normalize_puppet_gripper_velocity,
+    unnormalize_puppet_gripper_position,
+)
+from aloha.utils import sample_box_pose, sample_insertion_pose
+from dm_control.suite import base
+
+"""
+Environment for simulated robot bi-manual manipulation, with end-effector control.
+Action space:      [left_arm_pose (7),             # position and quaternion for end effector
+                    left_gripper_positions (1),    # normalized gripper position (0: close, 1: open)
+                    right_arm_pose (7),            # position and quaternion for end effector
+                    right_gripper_positions (1),]  # normalized gripper position (0: close, 1: open)
+
+Observation space: {"qpos": Concat[ left_arm_qpos (6),         # absolute joint position
+                                    left_gripper_position (1),  # normalized gripper position (0: close, 1: open)
+                                    right_arm_qpos (6),         # absolute joint position
+                                    right_gripper_qpos (1)]     # normalized gripper position (0: close, 1: open)
+                    "qvel": Concat[ left_arm_qvel (6),         # absolute joint velocity (rad)
+                                    left_gripper_velocity (1),  # normalized gripper velocity (pos: opening, neg: closing)
+                                    right_arm_qvel (6),         # absolute joint velocity (rad)
+                                    right_gripper_qvel (1)]     # normalized gripper velocity (pos: opening, neg: closing)
+                    "images": {"main": (480x640x3)}        # h, w, c, dtype='uint8'
+"""
+
+
+class BimanualViperXEndEffectorTask(base.Task):
+    def __init__(self, random=None):
+        super().__init__(random=random)
+
+    def before_step(self, action, physics):
+        a_len = len(action) // 2
+        action_left = action[:a_len]
+        action_right = action[a_len:]
+
+        # set mocap position and quat
+        # left
+        np.copyto(physics.data.mocap_pos[0], action_left[:3])
+        np.copyto(physics.data.mocap_quat[0], action_left[3:7])
+        # right
+        np.copyto(physics.data.mocap_pos[1], action_right[:3])
+        np.copyto(physics.data.mocap_quat[1], action_right[3:7])
+
+        # set gripper
+        g_left_ctrl = unnormalize_puppet_gripper_position(action_left[7])
+        g_right_ctrl = unnormalize_puppet_gripper_position(action_right[7])
+        np.copyto(physics.data.ctrl, np.array([g_left_ctrl, -g_left_ctrl, g_right_ctrl, -g_right_ctrl]))
+
+    def initialize_robots(self, physics):
+        # reset joint position
+        physics.named.data.qpos[:16] = START_ARM_POSE
+
+        # reset mocap to align with end effector
+        # to obtain these numbers:
+        # (1) make an ee_sim env and reset to the same start_pose
+        # (2) get env._physics.named.data.xpos['vx300s_left/gripper_link']
+        #     get env._physics.named.data.xquat['vx300s_left/gripper_link']
+        #     repeat the same for right side
+        np.copyto(physics.data.mocap_pos[0], [-0.31718881, 0.5, 0.29525084])
+        np.copyto(physics.data.mocap_quat[0], [1, 0, 0, 0])
+        # right
+        np.copyto(physics.data.mocap_pos[1], np.array([0.31718881, 0.49999888, 0.29525084]))
+        np.copyto(physics.data.mocap_quat[1], [1, 0, 0, 0])
+
+        # reset gripper control
+        close_gripper_control = np.array(
+            [
+                PUPPET_GRIPPER_POSITION_CLOSE,
+                -PUPPET_GRIPPER_POSITION_CLOSE,
+                PUPPET_GRIPPER_POSITION_CLOSE,
+                -PUPPET_GRIPPER_POSITION_CLOSE,
+            ]
+        )
+        np.copyto(physics.data.ctrl, close_gripper_control)
+
+    def initialize_episode(self, physics):
+        """Sets the state of the environment at the start of each episode."""
+        super().initialize_episode(physics)
+
+    @staticmethod
+    def get_qpos(physics):
+        qpos_raw = physics.data.qpos.copy()
+        left_qpos_raw = qpos_raw[:8]
+        right_qpos_raw = qpos_raw[8:16]
+        left_arm_qpos = left_qpos_raw[:6]
+        right_arm_qpos = right_qpos_raw[:6]
+        left_gripper_qpos = [normalize_puppet_gripper_position(left_qpos_raw[6])]
+        right_gripper_qpos = [normalize_puppet_gripper_position(right_qpos_raw[6])]
+        return np.concatenate([left_arm_qpos, left_gripper_qpos, right_arm_qpos, right_gripper_qpos])
+
+    @staticmethod
+    def get_qvel(physics):
+        qvel_raw = physics.data.qvel.copy()
+        left_qvel_raw = qvel_raw[:8]
+        right_qvel_raw = qvel_raw[8:16]
+        left_arm_qvel = left_qvel_raw[:6]
+        right_arm_qvel = right_qvel_raw[:6]
+        left_gripper_qvel = [normalize_puppet_gripper_velocity(left_qvel_raw[6])]
+        right_gripper_qvel = [normalize_puppet_gripper_velocity(right_qvel_raw[6])]
+        return np.concatenate([left_arm_qvel, left_gripper_qvel, right_arm_qvel, right_gripper_qvel])
+
+    @staticmethod
+    def get_env_state(physics):
+        raise NotImplementedError
+
+    def get_observation(self, physics):
+        # note: it is important to do .copy()
+        obs = collections.OrderedDict()
+        obs["qpos"] = self.get_qpos(physics)
+        obs["qvel"] = self.get_qvel(physics)
+        obs["env_state"] = self.get_env_state(physics)
+        obs["images"] = {}
+        obs["images"]["top"] = physics.render(height=480, width=640, camera_id="top")
+        obs["images"]["angle"] = physics.render(height=480, width=640, camera_id="angle")
+        obs["images"]["vis"] = physics.render(height=480, width=640, camera_id="front_close")
+        # used in scripted policy to obtain starting pose
+        obs["mocap_pose_left"] = np.concatenate(
+            [physics.data.mocap_pos[0], physics.data.mocap_quat[0]]
+        ).copy()
+        obs["mocap_pose_right"] = np.concatenate(
+            [physics.data.mocap_pos[1], physics.data.mocap_quat[1]]
+        ).copy()
+
+        # used when replaying joint trajectory
+        obs["gripper_ctrl"] = physics.data.ctrl.copy()
+        return obs
+
+    def get_reward(self, physics):
+        raise NotImplementedError
+
+
+class TransferCubeEndEffectorTask(BimanualViperXEndEffectorTask):
+    def __init__(self, random=None):
+        super().__init__(random=random)
+        self.max_reward = 4
+
+    def initialize_episode(self, physics):
+        """Sets the state of the environment at the start of each episode."""
+        self.initialize_robots(physics)
+        # randomize box position
+        cube_pose = sample_box_pose()
+        box_start_idx = physics.model.name2id("red_box_joint", "joint")
+        np.copyto(physics.data.qpos[box_start_idx : box_start_idx + 7], cube_pose)
+        # print(f"randomized cube position to {cube_position}")
+
+        super().initialize_episode(physics)
+
+    @staticmethod
+    def get_env_state(physics):
+        env_state = physics.data.qpos.copy()[16:]
+        return env_state
+
+    def get_reward(self, physics):
+        # return whether left gripper is holding the box
+        all_contact_pairs = []
+        for i_contact in range(physics.data.ncon):
+            id_geom_1 = physics.data.contact[i_contact].geom1
+            id_geom_2 = physics.data.contact[i_contact].geom2
+            name_geom_1 = physics.model.id2name(id_geom_1, "geom")
+            name_geom_2 = physics.model.id2name(id_geom_2, "geom")
+            contact_pair = (name_geom_1, name_geom_2)
+            all_contact_pairs.append(contact_pair)
+
+        touch_left_gripper = ("red_box", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+        touch_right_gripper = ("red_box", "vx300s_right/10_right_gripper_finger") in all_contact_pairs
+        touch_table = ("red_box", "table") in all_contact_pairs
+
+        reward = 0
+        if touch_right_gripper:
+            reward = 1
+        if touch_right_gripper and not touch_table:  # lifted
+            reward = 2
+        if touch_left_gripper:  # attempted transfer
+            reward = 3
+        if touch_left_gripper and not touch_table:  # successful transfer
+            reward = 4
+        return reward
+
+
+class InsertionEndEffectorTask(BimanualViperXEndEffectorTask):
+    def __init__(self, random=None):
+        super().__init__(random=random)
+        self.max_reward = 4
+
+    def initialize_episode(self, physics):
+        """Sets the state of the environment at the start of each episode."""
+        self.initialize_robots(physics)
+        # randomize peg and socket position
+        peg_pose, socket_pose = sample_insertion_pose()
+
+        def id2index(j_id):
+            return 16 + (j_id - 16) * 7  # first 16 is robot qpos, 7 is pose dim # hacky
+
+        peg_start_id = physics.model.name2id("red_peg_joint", "joint")
+        peg_start_idx = id2index(peg_start_id)
+        np.copyto(physics.data.qpos[peg_start_idx : peg_start_idx + 7], peg_pose)
+        # print(f"randomized cube position to {cube_position}")
+
+        socket_start_id = physics.model.name2id("blue_socket_joint", "joint")
+        socket_start_idx = id2index(socket_start_id)
+        np.copyto(physics.data.qpos[socket_start_idx : socket_start_idx + 7], socket_pose)
+        # print(f"randomized cube position to {cube_position}")
+
+        super().initialize_episode(physics)
+
+    @staticmethod
+    def get_env_state(physics):
+        env_state = physics.data.qpos.copy()[16:]
+        return env_state
+
+    def get_reward(self, physics):
+        # return whether peg touches the pin
+        all_contact_pairs = []
+        for i_contact in range(physics.data.ncon):
+            id_geom_1 = physics.data.contact[i_contact].geom1
+            id_geom_2 = physics.data.contact[i_contact].geom2
+            name_geom_1 = physics.model.id2name(id_geom_1, "geom")
+            name_geom_2 = physics.model.id2name(id_geom_2, "geom")
+            contact_pair = (name_geom_1, name_geom_2)
+            all_contact_pairs.append(contact_pair)
+
+        touch_right_gripper = ("red_peg", "vx300s_right/10_right_gripper_finger") in all_contact_pairs
+        touch_left_gripper = (
+            ("socket-1", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+            or ("socket-2", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+            or ("socket-3", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+            or ("socket-4", "vx300s_left/10_left_gripper_finger") in all_contact_pairs
+        )
+
+        peg_touch_table = ("red_peg", "table") in all_contact_pairs
+        socket_touch_table = (
+            ("socket-1", "table") in all_contact_pairs
+            or ("socket-2", "table") in all_contact_pairs
+            or ("socket-3", "table") in all_contact_pairs
+            or ("socket-4", "table") in all_contact_pairs
+        )
+        peg_touch_socket = (
+            ("red_peg", "socket-1") in all_contact_pairs
+            or ("red_peg", "socket-2") in all_contact_pairs
+            or ("red_peg", "socket-3") in all_contact_pairs
+            or ("red_peg", "socket-4") in all_contact_pairs
+        )
+        pin_touched = ("red_peg", "pin") in all_contact_pairs
+
+        reward = 0
+        if touch_left_gripper and touch_right_gripper:  # touch both
+            reward = 1
+        if (
+            touch_left_gripper and touch_right_gripper and (not peg_touch_table) and (not socket_touch_table)
+        ):  # grasp both
+            reward = 2
+        if peg_touch_socket and (not peg_touch_table) and (not socket_touch_table):  # peg and socket touching
+            reward = 3
+        if pin_touched:  # successful insertion
+            reward = 4
+        return reward

envs/sim_aloha/aloha/utils.py

@@ -0,0 +1,39 @@
+import numpy as np
+
+
+def sample_box_pose():
+    x_range = [0.0, 0.2]
+    y_range = [0.4, 0.6]
+    z_range = [0.05, 0.05]
+
+    ranges = np.vstack([x_range, y_range, z_range])
+    cube_position = np.random.uniform(ranges[:, 0], ranges[:, 1])
+
+    cube_quat = np.array([1, 0, 0, 0])
+    return np.concatenate([cube_position, cube_quat])
+
+
+def sample_insertion_pose():
+    # Peg
+    x_range = [0.1, 0.2]
+    y_range = [0.4, 0.6]
+    z_range = [0.05, 0.05]
+
+    ranges = np.vstack([x_range, y_range, z_range])
+    peg_position = np.random.uniform(ranges[:, 0], ranges[:, 1])
+
+    peg_quat = np.array([1, 0, 0, 0])
+    peg_pose = np.concatenate([peg_position, peg_quat])
+
+    # Socket
+    x_range = [-0.2, -0.1]
+    y_range = [0.4, 0.6]
+    z_range = [0.05, 0.05]
+
+    ranges = np.vstack([x_range, y_range, z_range])
+    socket_position = np.random.uniform(ranges[:, 0], ranges[:, 1])
+
+    socket_quat = np.array([1, 0, 0, 0])
+    socket_pose = np.concatenate([socket_position, socket_quat])
+
+    return peg_pose, socket_pose

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+
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+
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+description = "Python package for providing Mozilla's CA Bundle."
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envs/sim_aloha/pyproject.toml

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envs/sim_pusht/README.md

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envs/sim_pusht/pusht/pusht_env.py

@@ -0,0 +1,378 @@
+import collections
+
+import cv2
+import gymnasium as gym
+import numpy as np
+import pygame
+import pymunk
+import pymunk.pygame_util
+import shapely.geometry as sg
+import skimage.transform as st
+from gymnasium import spaces
+from pymunk.vec2d import Vec2d
+
+from pusht.pymunk_override import DrawOptions
+
+
+def pymunk_to_shapely(body, shapes):
+    geoms = []
+    for shape in shapes:
+        if isinstance(shape, pymunk.shapes.Poly):
+            verts = [body.local_to_world(v) for v in shape.get_vertices()]
+            verts += [verts[0]]
+            geoms.append(sg.Polygon(verts))
+        else:
+            raise RuntimeError(f"Unsupported shape type {type(shape)}")
+    geom = sg.MultiPolygon(geoms)
+    return geom
+
+
+class PushTEnv(gym.Env):
+    metadata = {"render.modes": ["human", "rgb_array"], "video.frames_per_second": 10}
+    reward_range = (0.0, 1.0)
+
+    def __init__(
+        self,
+        legacy=True,  # compatibility with original
+        block_cog=None,
+        damping=None,
+        render_action=True,
+        render_size=96,
+        reset_to_state=None,
+    ):
+        self._seed = None
+        self.seed()
+        self.window_size = ws = 512  # The size of the PyGame window
+        self.render_size = render_size
+        self.sim_hz = 100
+        # Local controller params.
+        self.k_p, self.k_v = 100, 20  # PD control.z
+        self.control_hz = self.metadata["video.frames_per_second"]
+        # legcay set_state for data compatibility
+        self.legacy = legacy
+
+        # agent_pos, block_pos, block_angle
+        self.observation_space = spaces.Box(
+            low=np.array([0, 0, 0, 0, 0], dtype=np.float64),
+            high=np.array([ws, ws, ws, ws, np.pi * 2], dtype=np.float64),
+            shape=(5,),
+            dtype=np.float64,
+        )
+
+        # positional goal for agent
+        self.action_space = spaces.Box(
+            low=np.array([0, 0], dtype=np.float64),
+            high=np.array([ws, ws], dtype=np.float64),
+            shape=(2,),
+            dtype=np.float64,
+        )
+
+        self.block_cog = block_cog
+        self.damping = damping
+        self.render_action = render_action
+
+        """
+        If human-rendering is used, `self.window` will be a reference
+        to the window that we draw to. `self.clock` will be a clock that is used
+        to ensure that the environment is rendered at the correct framerate in
+        human-mode. They will remain `None` until human-mode is used for the
+        first time.
+        """
+        self.window = None
+        self.clock = None
+        self.screen = None
+
+        self.space = None
+        self.teleop = None
+        self.render_buffer = None
+        self.latest_action = None
+        self.reset_to_state = reset_to_state
+
+    def reset(self):
+        seed = self._seed
+        self._setup()
+        if self.block_cog is not None:
+            self.block.center_of_gravity = self.block_cog
+        if self.damping is not None:
+            self.space.damping = self.damping
+
+        # use legacy RandomState for compatibility
+        state = self.reset_to_state
+        if state is None:
+            rs = np.random.RandomState(seed=seed)
+            state = np.array(
+                [
+                    rs.randint(50, 450),
+                    rs.randint(50, 450),
+                    rs.randint(100, 400),
+                    rs.randint(100, 400),
+                    rs.randn() * 2 * np.pi - np.pi,
+                ]
+            )
+        self._set_state(state)
+
+        observation = self._get_obs()
+        return observation
+
+    def step(self, action):
+        dt = 1.0 / self.sim_hz
+        self.n_contact_points = 0
+        n_steps = self.sim_hz // self.control_hz
+        if action is not None:
+            self.latest_action = action
+            for _ in range(n_steps):
+                # Step PD control.
+                # self.agent.velocity = self.k_p * (act - self.agent.position)    # P control works too.
+                acceleration = self.k_p * (action - self.agent.position) + self.k_v * (
+                    Vec2d(0, 0) - self.agent.velocity
+                )
+                self.agent.velocity += acceleration * dt
+
+                # Step physics.
+                self.space.step(dt)
+
+        # compute reward
+        goal_body = self._get_goal_pose_body(self.goal_pose)
+        goal_geom = pymunk_to_shapely(goal_body, self.block.shapes)
+        block_geom = pymunk_to_shapely(self.block, self.block.shapes)
+
+        intersection_area = goal_geom.intersection(block_geom).area
+        goal_area = goal_geom.area
+        coverage = intersection_area / goal_area
+        reward = np.clip(coverage / self.success_threshold, 0, 1)
+        done = coverage > self.success_threshold
+
+        observation = self._get_obs()
+        info = self._get_info()
+
+        return observation, reward, done, info
+
+    def render(self, mode):
+        return self._render_frame(mode)
+
+    def teleop_agent(self):
+        TeleopAgent = collections.namedtuple("TeleopAgent", ["act"])
+
+        def act(obs):
+            act = None
+            mouse_position = pymunk.pygame_util.from_pygame(Vec2d(*pygame.mouse.get_pos()), self.screen)
+            if self.teleop or (mouse_position - self.agent.position).length < 30:
+                self.teleop = True
+                act = mouse_position
+            return act
+
+        return TeleopAgent(act)
+
+    def _get_obs(self):
+        obs = np.array(
+            tuple(self.agent.position) + tuple(self.block.position) + (self.block.angle % (2 * np.pi),)
+        )
+        return obs
+
+    def _get_goal_pose_body(self, pose):
+        mass = 1
+        inertia = pymunk.moment_for_box(mass, (50, 100))
+        body = pymunk.Body(mass, inertia)
+        # preserving the legacy assignment order for compatibility
+        # the order here doesn't matter somehow, maybe because CoM is aligned with body origin
+        body.position = pose[:2].tolist()
+        body.angle = pose[2]
+        return body
+
+    def _get_info(self):
+        n_steps = self.sim_hz // self.control_hz
+        n_contact_points_per_step = int(np.ceil(self.n_contact_points / n_steps))
+        info = {
+            "pos_agent": np.array(self.agent.position),
+            "vel_agent": np.array(self.agent.velocity),
+            "block_pose": np.array(list(self.block.position) + [self.block.angle]),
+            "goal_pose": self.goal_pose,
+            "n_contacts": n_contact_points_per_step,
+        }
+        return info
+
+    def _render_frame(self, mode):
+        if self.window is None and mode == "human":
+            pygame.init()
+            pygame.display.init()
+            self.window = pygame.display.set_mode((self.window_size, self.window_size))
+        if self.clock is None and mode == "human":
+            self.clock = pygame.time.Clock()
+
+        canvas = pygame.Surface((self.window_size, self.window_size))
+        canvas.fill((255, 255, 255))
+        self.screen = canvas
+
+        draw_options = DrawOptions(canvas)
+
+        # Draw goal pose.
+        goal_body = self._get_goal_pose_body(self.goal_pose)
+        for shape in self.block.shapes:
+            goal_points = [
+                pymunk.pygame_util.to_pygame(goal_body.local_to_world(v), draw_options.surface)
+                for v in shape.get_vertices()
+            ]
+            goal_points += [goal_points[0]]
+            pygame.draw.polygon(canvas, self.goal_color, goal_points)
+
+        # Draw agent and block.
+        self.space.debug_draw(draw_options)
+
+        if mode == "human":
+            # The following line copies our drawings from `canvas` to the visible window
+            self.window.blit(canvas, canvas.get_rect())
+            pygame.event.pump()
+            pygame.display.update()
+
+            # the clock is already ticked during in step for "human"
+
+        img = np.transpose(np.array(pygame.surfarray.pixels3d(canvas)), axes=(1, 0, 2))
+        img = cv2.resize(img, (self.render_size, self.render_size))
+        if self.render_action and self.latest_action is not None:
+            action = np.array(self.latest_action)
+            coord = (action / 512 * 96).astype(np.int32)
+            marker_size = int(8 / 96 * self.render_size)
+            thickness = int(1 / 96 * self.render_size)
+            cv2.drawMarker(
+                img,
+                coord,
+                color=(255, 0, 0),
+                markerType=cv2.MARKER_CROSS,
+                markerSize=marker_size,
+                thickness=thickness,
+            )
+        return img
+
+    def close(self):
+        if self.window is not None:
+            pygame.display.quit()
+            pygame.quit()
+
+    def seed(self, seed=None):
+        if seed is None:
+            seed = np.random.randint(0, 25536)
+        self._seed = seed
+        self.np_random = np.random.default_rng(seed)
+
+    def _handle_collision(self, arbiter, space, data):
+        self.n_contact_points += len(arbiter.contact_point_set.points)
+
+    def _set_state(self, state):
+        if isinstance(state, np.ndarray):
+            state = state.tolist()
+        pos_agent = state[:2]
+        pos_block = state[2:4]
+        rot_block = state[4]
+        self.agent.position = pos_agent
+        # setting angle rotates with respect to center of mass
+        # therefore will modify the geometric position
+        # if not the same as CoM
+        # therefore should be modified first.
+        if self.legacy:
+            # for compatibility with legacy data
+            self.block.position = pos_block
+            self.block.angle = rot_block
+        else:
+            self.block.angle = rot_block
+            self.block.position = pos_block
+
+        # Run physics to take effect
+        self.space.step(1.0 / self.sim_hz)
+
+    def _set_state_local(self, state_local):
+        agent_pos_local = state_local[:2]
+        block_pose_local = state_local[2:]
+        tf_img_obj = st.AffineTransform(translation=self.goal_pose[:2], rotation=self.goal_pose[2])
+        tf_obj_new = st.AffineTransform(translation=block_pose_local[:2], rotation=block_pose_local[2])
+        tf_img_new = st.AffineTransform(matrix=tf_img_obj.params @ tf_obj_new.params)
+        agent_pos_new = tf_img_new(agent_pos_local)
+        new_state = np.array(list(agent_pos_new[0]) + list(tf_img_new.translation) + [tf_img_new.rotation])
+        self._set_state(new_state)
+        return new_state
+
+    def _setup(self):
+        self.space = pymunk.Space()
+        self.space.gravity = 0, 0
+        self.space.damping = 0
+        self.teleop = False
+        self.render_buffer = []
+
+        # Add walls.
+        walls = [
+            self._add_segment((5, 506), (5, 5), 2),
+            self._add_segment((5, 5), (506, 5), 2),
+            self._add_segment((506, 5), (506, 506), 2),
+            self._add_segment((5, 506), (506, 506), 2),
+        ]
+        self.space.add(*walls)
+
+        # Add agent, block, and goal zone.
+        self.agent = self.add_circle((256, 400), 15)
+        self.block = self.add_tee((256, 300), 0)
+        self.goal_color = pygame.Color("LightGreen")
+        self.goal_pose = np.array([256, 256, np.pi / 4])  # x, y, theta (in radians)
+
+        # Add collision handling
+        self.collision_handeler = self.space.add_collision_handler(0, 0)
+        self.collision_handeler.post_solve = self._handle_collision
+        self.n_contact_points = 0
+
+        self.max_score = 50 * 100
+        self.success_threshold = 0.95  # 95% coverage.
+
+    def _add_segment(self, a, b, radius):
+        shape = pymunk.Segment(self.space.static_body, a, b, radius)
+        shape.color = pygame.Color("LightGray")  # https://htmlcolorcodes.com/color-names
+        return shape
+
+    def add_circle(self, position, radius):
+        body = pymunk.Body(body_type=pymunk.Body.KINEMATIC)
+        body.position = position
+        body.friction = 1
+        shape = pymunk.Circle(body, radius)
+        shape.color = pygame.Color("RoyalBlue")
+        self.space.add(body, shape)
+        return body
+
+    def add_box(self, position, height, width):
+        mass = 1
+        inertia = pymunk.moment_for_box(mass, (height, width))
+        body = pymunk.Body(mass, inertia)
+        body.position = position
+        shape = pymunk.Poly.create_box(body, (height, width))
+        shape.color = pygame.Color("LightSlateGray")
+        self.space.add(body, shape)
+        return body
+
+    def add_tee(self, position, angle, scale=30, color="LightSlateGray", mask=None):
+        if mask is None:
+            mask = pymunk.ShapeFilter.ALL_MASKS()
+        mass = 1
+        length = 4
+        vertices1 = [
+            (-length * scale / 2, scale),
+            (length * scale / 2, scale),
+            (length * scale / 2, 0),
+            (-length * scale / 2, 0),
+        ]
+        inertia1 = pymunk.moment_for_poly(mass, vertices=vertices1)
+        vertices2 = [
+            (-scale / 2, scale),
+            (-scale / 2, length * scale),
+            (scale / 2, length * scale),
+            (scale / 2, scale),
+        ]
+        inertia2 = pymunk.moment_for_poly(mass, vertices=vertices1)
+        body = pymunk.Body(mass, inertia1 + inertia2)
+        shape1 = pymunk.Poly(body, vertices1)
+        shape2 = pymunk.Poly(body, vertices2)
+        shape1.color = pygame.Color(color)
+        shape2.color = pygame.Color(color)
+        shape1.filter = pymunk.ShapeFilter(mask=mask)
+        shape2.filter = pymunk.ShapeFilter(mask=mask)
+        body.center_of_gravity = (shape1.center_of_gravity + shape2.center_of_gravity) / 2
+        body.position = position
+        body.angle = angle
+        body.friction = 1
+        self.space.add(body, shape1, shape2)
+        return body

envs/sim_pusht/pusht/pusht_image_env.py

@@ -0,0 +1,41 @@
+import numpy as np
+from gymnasium import spaces
+
+from pusht.pusht_env import PushTEnv
+
+
+class PushTImageEnv(PushTEnv):
+    metadata = {"render.modes": ["rgb_array"], "video.frames_per_second": 10}
+
+    # Note: legacy defaults to True for compatibility with original
+    def __init__(self, legacy=True, block_cog=None, damping=None, render_size=96):
+        super().__init__(
+            legacy=legacy, block_cog=block_cog, damping=damping, render_size=render_size, render_action=False
+        )
+        ws = self.window_size
+        self.observation_space = spaces.Dict(
+            {
+                "image": spaces.Box(low=0, high=1, shape=(3, render_size, render_size), dtype=np.float32),
+                "agent_pos": spaces.Box(low=0, high=ws, shape=(2,), dtype=np.float32),
+            }
+        )
+        self.render_cache = None
+
+    def _get_obs(self):
+        img = super()._render_frame(mode="rgb_array")
+
+        agent_pos = np.array(self.agent.position)
+        img_obs = np.moveaxis(img, -1, 0)
+        obs = {"image": img_obs, "agent_pos": agent_pos}
+
+        self.render_cache = img
+
+        return obs
+
+    def render(self, mode):
+        assert mode == "rgb_array"
+
+        if self.render_cache is None:
+            self._get_obs()
+
+        return self.render_cache

envs/sim_pusht/pusht/pymunk_override.py

@@ -0,0 +1,244 @@
+# ----------------------------------------------------------------------------
+# pymunk
+# Copyright (c) 2007-2016 Victor Blomqvist
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ----------------------------------------------------------------------------
+
+"""This submodule contains helper functions to help with quick prototyping
+using pymunk together with pygame.
+
+Intended to help with debugging and prototyping, not for actual production use
+in a full application. The methods contained in this module is opinionated
+about your coordinate system and not in any way optimized.
+"""
+
+__docformat__ = "reStructuredText"
+
+__all__ = [
+    "DrawOptions",
+    "get_mouse_pos",
+    "to_pygame",
+    "from_pygame",
+    # "lighten",
+    "positive_y_is_up",
+]
+
+from typing import Sequence, Tuple
+
+import numpy as np
+import pygame
+import pymunk
+from pymunk.space_debug_draw_options import SpaceDebugColor
+from pymunk.vec2d import Vec2d
+
+positive_y_is_up: bool = False
+"""Make increasing values of y point upwards.
+
+When True::
+
+    y
+    ^
+    |      . (3, 3)
+    |
+    |   . (2, 2)
+    |
+    +------ > x
+
+When False::
+
+    +------ > x
+    |
+    |   . (2, 2)
+    |
+    |      . (3, 3)
+    v
+    y
+
+"""
+
+
+class DrawOptions(pymunk.SpaceDebugDrawOptions):
+    def __init__(self, surface: pygame.Surface) -> None:
+        """Draw a pymunk.Space on a pygame.Surface object.
+
+        Typical usage::
+
+        >>> import pymunk
+        >>> surface = pygame.Surface((10,10))
+        >>> space = pymunk.Space()
+        >>> options = pymunk.pygame_util.DrawOptions(surface)
+        >>> space.debug_draw(options)
+
+        You can control the color of a shape by setting shape.color to the color
+        you want it drawn in::
+
+        >>> c = pymunk.Circle(None, 10)
+        >>> c.color = pygame.Color("pink")
+
+        See pygame_util.demo.py for a full example
+
+        Since pygame uses a coordinate system where y points down (in contrast
+        to many other cases), you either have to make the physics simulation
+        with Pymunk also behave in that way, or flip everything when you draw.
+
+        The easiest is probably to just make the simulation behave the same
+        way as Pygame does. In that way all coordinates used are in the same
+        orientation and easy to reason about::
+
+        >>> space = pymunk.Space()
+        >>> space.gravity = (0, -1000)
+        >>> body = pymunk.Body()
+        >>> body.position = (0, 0) # will be positioned in the top left corner
+        >>> space.debug_draw(options)
+
+        To flip the drawing its possible to set the module property
+        :py:data:`positive_y_is_up` to True. Then the pygame drawing will flip
+        the simulation upside down before drawing::
+
+        >>> positive_y_is_up = True
+        >>> body = pymunk.Body()
+        >>> body.position = (0, 0)
+        >>> # Body will be position in bottom left corner
+
+        :Parameters:
+                surface : pygame.Surface
+                    Surface that the objects will be drawn on
+        """
+        self.surface = surface
+        super().__init__()
+
+    def draw_circle(
+        self,
+        pos: Vec2d,
+        angle: float,
+        radius: float,
+        outline_color: SpaceDebugColor,
+        fill_color: SpaceDebugColor,
+    ) -> None:
+        p = to_pygame(pos, self.surface)
+
+        pygame.draw.circle(self.surface, fill_color.as_int(), p, round(radius), 0)
+        pygame.draw.circle(self.surface, light_color(fill_color).as_int(), p, round(radius - 4), 0)
+
+        # circle_edge = pos + Vec2d(radius, 0).rotated(angle)
+        # p2 = to_pygame(circle_edge, self.surface)
+        # line_r = 2 if radius > 20 else 1
+        # pygame.draw.lines(self.surface, outline_color.as_int(), False, [p, p2], line_r)
+
+    def draw_segment(self, a: Vec2d, b: Vec2d, color: SpaceDebugColor) -> None:
+        p1 = to_pygame(a, self.surface)
+        p2 = to_pygame(b, self.surface)
+
+        pygame.draw.aalines(self.surface, color.as_int(), False, [p1, p2])
+
+    def draw_fat_segment(
+        self,
+        a: Tuple[float, float],
+        b: Tuple[float, float],
+        radius: float,
+        outline_color: SpaceDebugColor,
+        fill_color: SpaceDebugColor,
+    ) -> None:
+        p1 = to_pygame(a, self.surface)
+        p2 = to_pygame(b, self.surface)
+
+        r = round(max(1, radius * 2))
+        pygame.draw.lines(self.surface, fill_color.as_int(), False, [p1, p2], r)
+        if r > 2:
+            orthog = [abs(p2[1] - p1[1]), abs(p2[0] - p1[0])]
+            if orthog[0] == 0 and orthog[1] == 0:
+                return
+            scale = radius / (orthog[0] * orthog[0] + orthog[1] * orthog[1]) ** 0.5
+            orthog[0] = round(orthog[0] * scale)
+            orthog[1] = round(orthog[1] * scale)
+            points = [
+                (p1[0] - orthog[0], p1[1] - orthog[1]),
+                (p1[0] + orthog[0], p1[1] + orthog[1]),
+                (p2[0] + orthog[0], p2[1] + orthog[1]),
+                (p2[0] - orthog[0], p2[1] - orthog[1]),
+            ]
+            pygame.draw.polygon(self.surface, fill_color.as_int(), points)
+            pygame.draw.circle(
+                self.surface,
+                fill_color.as_int(),
+                (round(p1[0]), round(p1[1])),
+                round(radius),
+            )
+            pygame.draw.circle(
+                self.surface,
+                fill_color.as_int(),
+                (round(p2[0]), round(p2[1])),
+                round(radius),
+            )
+
+    def draw_polygon(
+        self,
+        verts: Sequence[Tuple[float, float]],
+        radius: float,
+        outline_color: SpaceDebugColor,
+        fill_color: SpaceDebugColor,
+    ) -> None:
+        ps = [to_pygame(v, self.surface) for v in verts]
+        ps += [ps[0]]
+
+        radius = 2
+        pygame.draw.polygon(self.surface, light_color(fill_color).as_int(), ps)
+
+        if radius > 0:
+            for i in range(len(verts)):
+                a = verts[i]
+                b = verts[(i + 1) % len(verts)]
+                self.draw_fat_segment(a, b, radius, fill_color, fill_color)
+
+    def draw_dot(self, size: float, pos: Tuple[float, float], color: SpaceDebugColor) -> None:
+        p = to_pygame(pos, self.surface)
+        pygame.draw.circle(self.surface, color.as_int(), p, round(size), 0)
+
+
+def get_mouse_pos(surface: pygame.Surface) -> Tuple[int, int]:
+    """Get position of the mouse pointer in pymunk coordinates."""
+    p = pygame.mouse.get_pos()
+    return from_pygame(p, surface)
+
+
+def to_pygame(p: Tuple[float, float], surface: pygame.Surface) -> Tuple[int, int]:
+    """Convenience method to convert pymunk coordinates to pygame surface
+    local coordinates.
+
+    Note that in case positive_y_is_up is False, this function won't actually do
+    anything except converting the point to integers.
+    """
+    if positive_y_is_up:
+        return round(p[0]), surface.get_height() - round(p[1])
+    else:
+        return round(p[0]), round(p[1])
+
+
+def from_pygame(p: Tuple[float, float], surface: pygame.Surface) -> Tuple[int, int]:
+    """Convenience method to convert pygame surface local coordinates to
+    pymunk coordinates
+    """
+    return to_pygame(p, surface)
+
+
+def light_color(color: SpaceDebugColor):
+    color = np.minimum(1.2 * np.float32([color.r, color.g, color.b, color.a]), np.float32([255]))
+    color = SpaceDebugColor(r=color[0], g=color[1], b=color[2], a=color[3])
+    return color

envs/sim_pusht/pyproject.toml

@@ -0,0 +1,37 @@
+[tool.poetry]
+name = "sim_pusht"
+version = "0.1.0"
+description = "PushT environment for LeRobot"
+authors = [
+    "Rémi Cadène <re.cadene@gmail.com>",
+]
+maintainers = [
+    "Alexander Soare <alexander.soare159@gmail.com>",
+    "Quentin Gallouédec <quentin.gallouedec@ec-lyon.fr>",
+    "Simon Alibert <alibert.sim@gmail.com>",
+]
+readme = "README.md"
+license = "Apache-2.0"
+classifiers=[
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "Topic :: Software Development :: Build Tools",
+    "License :: OSI Approved :: Apache Software License",
+    "Programming Language :: Python :: 3.10",
+]
+packages = [{include = "pusht"}]
+
+
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+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

envs/sim_xarm/README.md

@@ -0,0 +1 @@
+# xArm environment for LeRobot

envs/sim_xarm/poetry.lock

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+docs = ["furo", "olefile", "sphinx (>=2.4)", "sphinx-copybutton", "sphinx-inline-tabs", "sphinx-removed-in", "sphinxext-opengraph"]
+fpx = ["olefile"]
+mic = ["olefile"]
+tests = ["check-manifest", "coverage", "defusedxml", "markdown2", "olefile", "packaging", "pyroma", "pytest", "pytest-cov", "pytest-timeout"]
+typing = ["typing-extensions"]
+xmp = ["defusedxml"]
+
+[[package]]
+name = "pyopengl"
+version = "3.1.7"
+description = "Standard OpenGL bindings for Python"
+optional = false
+python-versions = "*"
+files = [
+    {file = "PyOpenGL-3.1.7-py3-none-any.whl", hash = "sha256:a6ab19cf290df6101aaf7470843a9c46207789855746399d0af92521a0a92b7a"},
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+]
+
+[[package]]
+name = "typing-extensions"
+version = "4.10.0"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "typing_extensions-4.10.0-py3-none-any.whl", hash = "sha256:69b1a937c3a517342112fb4c6df7e72fc39a38e7891a5730ed4985b5214b5475"},
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+]
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.10"
+content-hash = "165d82035aade2abad497b32e156ec18d8ebc6c57a36376c3351b593c6889f22"

envs/sim_xarm/pyproject.toml

@@ -0,0 +1,34 @@
+[tool.poetry]
+name = "sim_xarm"
+version = "0.1.0"
+description = "xArm environment for LeRobot"
+authors = [
+    "Rémi Cadène <re.cadene@gmail.com>",
+]
+maintainers = [
+    "Alexander Soare <alexander.soare159@gmail.com>",
+    "Quentin Gallouédec <quentin.gallouedec@ec-lyon.fr>",
+    "Simon Alibert <alibert.sim@gmail.com>",
+]
+readme = "README.md"
+license = "Apache-2.0"
+classifiers=[
+    "Development Status :: 3 - Alpha",
+    "Intended Audience :: Developers",
+    "Topic :: Software Development :: Build Tools",
+    "License :: OSI Approved :: Apache Software License",
+    "Programming Language :: Python :: 3.10",
+]
+packages = [{include = "xarm"}]
+
+
+[tool.poetry.dependencies]
+python = "^3.10"
+mujoco = "^2.3.7"
+gymnasium = "^0.29.1"
+gymnasium-robotics = "^1.2.4"
+
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

envs/sim_xarm/xarm/__init__.py

@@ -0,0 +1,166 @@
+from collections import OrderedDict, deque
+
+import gymnasium as gym
+import numpy as np
+from gymnasium.wrappers import TimeLimit
+
+from xarm.tasks.base import Base as Base
+from xarm.tasks.lift import Lift
+from xarm.tasks.peg_in_box import PegInBox
+from xarm.tasks.push import Push
+from xarm.tasks.reach import Reach
+
+TASKS = OrderedDict(
+    (
+        (
+            "reach",
+            {
+                "env": Reach,
+                "action_space": "xyz",
+                "episode_length": 50,
+                "description": "Reach a target location with the end effector",
+            },
+        ),
+        (
+            "push",
+            {
+                "env": Push,
+                "action_space": "xyz",
+                "episode_length": 50,
+                "description": "Push a cube to a target location",
+            },
+        ),
+        (
+            "peg_in_box",
+            {
+                "env": PegInBox,
+                "action_space": "xyz",
+                "episode_length": 50,
+                "description": "Insert a peg into a box",
+            },
+        ),
+        (
+            "lift",
+            {
+                "env": Lift,
+                "action_space": "xyzw",
+                "episode_length": 50,
+                "description": "Lift a cube above a height threshold",
+            },
+        ),
+    )
+)
+
+
+class SimXarmWrapper(gym.Wrapper):
+    """
+    A wrapper for the SimXarm environments. This wrapper is used to
+    convert the action and observation spaces to the correct format.
+    """
+
+    def __init__(self, env, task, obs_mode, image_size, action_repeat, frame_stack=1, channel_last=False):
+        super().__init__(env)
+        self._env = env
+        self.obs_mode = obs_mode
+        self.image_size = image_size
+        self.action_repeat = action_repeat
+        self.frame_stack = frame_stack
+        self._frames = deque([], maxlen=frame_stack)
+        self.channel_last = channel_last
+        self._max_episode_steps = task["episode_length"] // action_repeat
+
+        image_shape = (
+            (image_size, image_size, 3 * frame_stack)
+            if channel_last
+            else (3 * frame_stack, image_size, image_size)
+        )
+        if obs_mode == "state":
+            self.observation_space = env.observation_space["observation"]
+        elif obs_mode == "rgb":
+            self.observation_space = gym.spaces.Box(low=0, high=255, shape=image_shape, dtype=np.uint8)
+        elif obs_mode == "all":
+            self.observation_space = gym.spaces.Dict(
+                state=gym.spaces.Box(low=-np.inf, high=np.inf, shape=(4,), dtype=np.float32),
+                rgb=gym.spaces.Box(low=0, high=255, shape=image_shape, dtype=np.uint8),
+            )
+        else:
+            raise ValueError(f"Unknown obs_mode {obs_mode}. Must be one of [rgb, all, state]")
+        self.action_space = gym.spaces.Box(low=-1.0, high=1.0, shape=(len(task["action_space"]),))
+        self.action_padding = np.zeros(4 - len(task["action_space"]), dtype=np.float32)
+        if "w" not in task["action_space"]:
+            self.action_padding[-1] = 1.0
+
+    def _render_obs(self):
+        obs = self.render(mode="rgb_array", width=self.image_size, height=self.image_size)
+        if not self.channel_last:
+            obs = obs.transpose(2, 0, 1)
+        return obs.copy()
+
+    def _update_frames(self, reset=False):
+        pixels = self._render_obs()
+        self._frames.append(pixels)
+        if reset:
+            for _ in range(1, self.frame_stack):
+                self._frames.append(pixels)
+        assert len(self._frames) == self.frame_stack
+
+    def transform_obs(self, obs, reset=False):
+        if self.obs_mode == "state":
+            return obs["observation"]
+        elif self.obs_mode == "rgb":
+            self._update_frames(reset=reset)
+            rgb_obs = np.concatenate(list(self._frames), axis=-1 if self.channel_last else 0)
+            return rgb_obs
+        elif self.obs_mode == "all":
+            self._update_frames(reset=reset)
+            rgb_obs = np.concatenate(list(self._frames), axis=-1 if self.channel_last else 0)
+            return OrderedDict((("rgb", rgb_obs), ("state", self.robot_state)))
+        else:
+            raise ValueError(f"Unknown obs_mode {self.obs_mode}. Must be one of [rgb, all, state]")
+
+    def reset(self):
+        return self.transform_obs(self._env.reset(), reset=True)
+
+    def step(self, action):
+        action = np.concatenate([action, self.action_padding])
+        reward = 0.0
+        for _ in range(self.action_repeat):
+            obs, r, done, info = self._env.step(action)
+            reward += r
+        return self.transform_obs(obs), reward, done, info
+
+    def render(self, mode="rgb_array", width=384, height=384, **kwargs):
+        return self._env.render(mode, width=width, height=height)
+
+    @property
+    def state(self):
+        return self._env.robot_state
+
+
+def make(task, obs_mode="state", image_size=84, action_repeat=1, frame_stack=1, channel_last=False, seed=0):
+    """
+    Create a new environment.
+    Args:
+            task (str): The task to create an environment for. Must be one of:
+                    - 'reach'
+                    - 'push'
+                    - 'peg-in-box'
+                    - 'lift'
+            obs_mode (str): The observation mode to use. Must be one of:
+                    - 'state': Only state observations
+                    - 'rgb': RGB images
+                    - 'all': RGB images and state observations
+            image_size (int): The size of the image observations
+            action_repeat (int): The number of times to repeat the action
+            seed (int): The random seed to use
+    Returns:
+            gym.Env: The environment
+    """
+    if task not in TASKS:
+        raise ValueError(f"Unknown task {task}. Must be one of {list(TASKS.keys())}")
+    env = TASKS[task]["env"]()
+    env = TimeLimit(env, TASKS[task]["episode_length"])
+    env = SimXarmWrapper(env, TASKS[task], obs_mode, image_size, action_repeat, frame_stack, channel_last)
+    env.seed(seed)
+
+    return env

envs/sim_xarm/xarm/tasks/assets/lift.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<mujoco>
+	<compiler angle="radian" coordinate="local" meshdir="mesh" texturedir="texture"></compiler>
+	<size nconmax="2000" njmax="500"/>
+
+	<option timestep="0.002">
+		<flag warmstart="enable"></flag>
+	</option>
+
+	<include file="shared.xml"></include>
+
+	<worldbody>
+		<body name="floor0" pos="0 0 0">
+			<geom name="floorgeom0" pos="1.2 -2.0 0" size="20.0 20.0 1" type="plane" condim="3" material="floor_mat"></geom>
+		</body>
+
+		<include file="xarm.xml"></include>
+
+		<body pos="0.75 0 0.6325" name="pedestal0">
+			<geom name="pedestalgeom0" size="0.1 0.1 0.01" pos="0.32 0.27 0" type="box" mass="2000" material="pedestal_mat"></geom>
+			<site pos="0.30 0.30 0" size="0.075 0.075 0.002" type="box" name="robotmountsite0" rgba="0.55 0.54 0.53 1" />
+		</body>
+
+		<body pos="1.5 0.075 0.3425" name="table0">
+			<geom name="tablegeom0" size="0.3 0.6 0.2" pos="0 0 0" type="box" material="table_mat" density="2000" friction="1 1 1"></geom>
+		</body>
+
+		<body name="object" pos="1.405 0.3 0.58625">
+			<joint name="object_joint0" type="free" limited="false"></joint>
+			<geom size="0.035 0.035 0.035" type="box" name="object0" material="block_mat" density="50000" condim="4" friction="1 1 1" solimp="1 1 1" solref="0.02 1"></geom>
+			<site name="object_site" pos="0 0 0" size="0.035 0.035 0.035" rgba="1 0 0 0" type="box"></site>
+		</body>
+
+		<light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="1.65 0 10" dir="-0.57 -0.57 -0.57" name="light0"></light>
+        <light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="0 -4 4" dir="0 1 -0.1" name="light1"></light>
+        <light directional="true" ambient="0.05 0.05 0.05" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="2.13 1.6 2.5" name="light2"></light>
+        <light pos="0 0 2" dir="0.2 0.2 -0.8" directional="true"  diffuse="0.3 0.3 0.3"  castshadow="false" name="light3"></light>
+
+		<camera fovy="50" name="camera0" pos="0.9559 1.0 1.1" euler="-1.1 -0.6 3.4" />
+	</worldbody>
+
+	<equality>
+    	<connect body2="left_finger" body1="left_inner_knuckle" anchor="0.0 0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+    	<connect body2="right_finger" body1="right_inner_knuckle" anchor="0.0 -0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+        <joint joint1="left_inner_knuckle_joint" joint2="right_inner_knuckle_joint"></joint>
+    </equality>
+
+    <actuator>
+		<motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="left_inner_knuckle_joint" gear="200.0"/>
+        <motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="right_inner_knuckle_joint" gear="200.0"/>
+    </actuator>
+</mujoco>

envs/sim_xarm/xarm/tasks/assets/mesh/base_link.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:21fb81ae7fba19e3c6b2d2ca60c8051712ba273357287eb5a397d92d61c7a736
+size 1211434

envs/sim_xarm/xarm/tasks/assets/mesh/block_inner.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:be68ce180d11630a667a5f37f4dffcc3feebe4217d4bb3912c813b6d9ca3ec66
+size 3284

envs/sim_xarm/xarm/tasks/assets/mesh/block_inner2.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:2c6448552bf6b1c4f17334d686a5320ce051bcdfe31431edf69303d8a570d1de
+size 3284

envs/sim_xarm/xarm/tasks/assets/mesh/block_outer.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:748b9e197e6521914f18d1f6383a36f211136b3f33f2ad2a8c11b9f921c2cf86
+size 6284

envs/sim_xarm/xarm/tasks/assets/mesh/left_finger.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:a44756eb72f9c214cb37e61dc209cd7073fdff3e4271a7423476ef6fd090d2d4
+size 242684

envs/sim_xarm/xarm/tasks/assets/mesh/left_inner_knuckle.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:e8e48692ad26837bb3d6a97582c89784d09948fc09bfe4e5a59017859ff04dac
+size 366284

envs/sim_xarm/xarm/tasks/assets/mesh/left_outer_knuckle.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:501665812b08d67e764390db781e839adc6896a9540301d60adf606f57648921
+size 22284

envs/sim_xarm/xarm/tasks/assets/mesh/link1.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:34b541122df84d2ef5fcb91b715eb19659dc15ad8d44a191dde481f780265636
+size 184184

envs/sim_xarm/xarm/tasks/assets/mesh/link2.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:61e641cd47c169ecef779683332e00e4914db729bf02dfb61bfbe69351827455
+size 225584

envs/sim_xarm/xarm/tasks/assets/mesh/link3.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:9e2798e7946dd70046c95455d5ba96392d0b54a6069caba91dc4ca66e1379b42
+size 237084

envs/sim_xarm/xarm/tasks/assets/mesh/link4.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:c757fee95f873191a0633c355c07a360032960771cabbd7593a6cdb0f1ffb089
+size 243684

envs/sim_xarm/xarm/tasks/assets/mesh/link5.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:715ad5787c5dab57589937fd47289882707b5e1eb997e340d567785b02f4ec90
+size 229084

envs/sim_xarm/xarm/tasks/assets/mesh/link6.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:85b320aa420497827223d16d492bba8de091173374e361396fc7a5dad7bdb0cb
+size 399384

envs/sim_xarm/xarm/tasks/assets/mesh/link7.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:97115d848fbf802cb770cd9be639ae2af993103b9d9bbb0c50c943c738a36f18
+size 231684

envs/sim_xarm/xarm/tasks/assets/mesh/link_base.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f6fcbc18258090eb56c21cfb17baa5ae43abc98b1958cd366f3a73b9898fc7f0
+size 2106184

envs/sim_xarm/xarm/tasks/assets/mesh/right_finger.stl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:c5dee87c7f37baf554b8456ebfe0b3e8ed0b22b8938bd1add6505c2ad6d32c7d
+size 242684

envs/sim_xarm/xarm/tasks/assets/mesh/right_inner_knuckle.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b41dd2c2c550281bf78d7cc6fa117b14786700e5c453560a0cb5fd6dfa0ffb3e
+size 366284

envs/sim_xarm/xarm/tasks/assets/mesh/right_outer_knuckle.stl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:75ca1107d0a42a0f03802a9a49cab48419b31851ee8935f8f1ca06be1c1c91e8
+size 22284

envs/sim_xarm/xarm/tasks/assets/peg_in_box.xml

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<mujoco>
+	<compiler angle="radian" coordinate="local" meshdir="mesh" texturedir="texture"></compiler>
+	<size nconmax="2000" njmax="500"/>
+
+	<option timestep="0.001">
+		<flag warmstart="enable"></flag>
+	</option>
+
+	<include file="shared.xml"></include>
+
+	<worldbody>
+		<body name="floor0" pos="0 0 0">
+			<geom name="floorgeom0" pos="1.2 -2.0 0" size="1.0 10.0 1" type="plane" condim="3" material="floor_mat"></geom>
+		</body>
+
+		<include file="xarm.xml"></include>
+
+		<body pos="0.75 0 0.6325" name="pedestal0">
+			<geom name="pedestalgeom0" size="0.1 0.1 0.01" pos="0.32 0.27 0" type="box" mass="2000" material="pedestal_mat"></geom>
+			<site pos="0.30 0.30 0" size="0.075 0.075 0.002" type="box" name="robotmountsite0" rgba="0.55 0.54 0.53 1" />
+		</body>
+
+		<body pos="1.5 0.075 0.3425" name="table0">
+			<geom name="tablegeom0" size="0.3 0.6 0.2" pos="0 0 0" type="box" material="table_mat" density="2000" friction="1 0.005 0.0002"></geom>
+		</body>
+
+		<body name="box0" pos="1.605 0.25 0.55">
+			<joint name="box_joint0" type="free" limited="false"></joint>
+			<site name="box_site" pos="0 0.075 -0.01" size="0.02" rgba="0 0 0 0" type="sphere"></site>
+			<geom name="box_side0" pos="0 0 0" size="0.065 0.002 0.04" type= "box" rgba="0.8 0.1 0.1 1" mass ="1" condim="4" />
+			<geom name="box_side1" pos="0 0.149 0" size="0.065 0.002 0.04" type="box" rgba="0.9 0.2 0.2 1" mass ="2" condim="4" />
+			<geom name="box_side2" pos="0.064 0.074 0" size="0.002 0.075 0.04" type="box" rgba="0.8 0.1 0.1 1" mass ="2" condim="4" />
+			<geom name="box_side3" pos="-0.064 0.074 0" size="0.002 0.075 0.04" type="box" rgba="0.9 0.2 0.2 1" mass ="2" condim="4" />
+			<geom name="box_side4" pos="-0 0.074 -0.038" size="0.065 0.075 0.002" type="box" rgba="0.5 0 0 1" mass ="2" condim="4"/>
+		</body>
+
+		<body name="object0" pos="1.4 0.25 0.65">
+			<joint name="object_joint0" type="free" limited="false"></joint>
+			<geom name="object_target0" type="cylinder" pos="0 0 -0.05" size="0.03 0.035" rgba="0.6 0.8 0.5 1" mass ="0.1" condim="3"  />
+			<site name="object_site" pos="0 0 -0.05" size="0.0325 0.0375" rgba="0 0 0 0" type="cylinder"></site>
+			<body name="B0" pos="0 0 0" euler="0 0 0 ">
+				<joint name="B0:joint" type="slide" limited="true" axis="0 0 1" damping="0.05" range="0.0001 0.0001001" solimpfriction="0.98 0.98 0.95" frictionloss="1"></joint>
+				<geom type="capsule" size="0.002 0.03" rgba="0 0 0 1" mass="0.001" condim="4"/>
+				<body name="B1" pos="0 0 0.04" euler="0 3.14 0 ">
+					<joint name="B1:joint1" type="hinge" axis="1 0 0" range="-0.1 0.1"  frictionloss="1"></joint>
+					<joint name="B1:joint2" type="hinge" axis="0 1 0" range="-0.1 0.1"  frictionloss="1"></joint>
+					<joint name="B1:joint3" type="hinge" axis="0 0 1" range="-0.1 0.1"  frictionloss="1"></joint>
+					<geom type="capsule" size="0.002 0.004" rgba="1 0 0 0" mass="0.001" condim="4"/>
+				</body>
+			</body>
+		</body>
+
+		<light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="1.65 0 10" dir="-0.57 -0.57 -0.57" name="light0"></light>
+		<light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="0 -4 4" dir="0 1 -0.1" name="light1"></light>
+		<light directional="true" ambient="0.05 0.05 0.05" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="2.13 1.6 2.5" name="light2"></light>
+		<light pos="0 0 2" dir="0.2 0.2 -0.8" directional="true"  diffuse="0.3 0.3 0.3"  castshadow="false" name="light3"></light>
+
+		<camera fovy="50" name="camera0" pos="0.9559 1.0 1.1" euler="-1.1 -0.6 3.4" />
+	</worldbody>
+
+	<equality>
+		<connect body2="left_finger" body1="left_inner_knuckle" anchor="0.0 0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+		<connect body2="right_finger" body1="right_inner_knuckle" anchor="0.0 -0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+		<weld body1="right_hand" body2="B1" solimp="0.99 0.99 0.99" solref="0.02 1"></weld>
+		<joint joint1="left_inner_knuckle_joint" joint2="right_inner_knuckle_joint"></joint>
+	</equality>
+
+	<actuator>
+		<motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="left_inner_knuckle_joint" gear="200.0"/>
+		<motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="right_inner_knuckle_joint" gear="200.0"/>
+	</actuator>
+</mujoco>

envs/sim_xarm/xarm/tasks/assets/push.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<mujoco>
+	<compiler angle="radian" coordinate="local" meshdir="mesh" texturedir="texture"></compiler>
+	<size nconmax="2000" njmax="500"/>
+
+	<option timestep="0.002">
+		<flag warmstart="enable"></flag>
+	</option>
+
+	<include file="shared.xml"></include>
+
+	<worldbody>
+		<body name="floor0" pos="0 0 0">
+			<geom name="floorgeom0" pos="1.2 -2.0 0" size="1.0 10.0 1" type="plane" condim="3" material="floor_mat"></geom>
+			<site name="target0" pos="1.565 0.3 0.545" size="0.0475 0.001" rgba="1 0 0 1" type="cylinder"></site>
+		</body>
+
+		<include file="xarm.xml"></include>
+
+		<body pos="0.75 0 0.6325" name="pedestal0">
+			<geom name="pedestalgeom0" size="0.1 0.1 0.01" pos="0.32 0.27 0" type="box" mass="2000" material="pedestal_mat"></geom>
+			<site pos="0.30 0.30 0" size="0.075 0.075 0.002" type="box" name="robotmountsite0" rgba="0.55 0.54 0.53 1" />
+		</body>
+
+		<body pos="1.5 0.075 0.3425" name="table0">
+			<geom name="tablegeom0" size="0.3 0.6 0.2" pos="0 0 0" type="box" material="table_mat" density="2000" friction="1 0.005 0.0002"></geom>
+		</body>
+
+		<body name="object" pos="1.655 0.3 0.68">
+			<joint name="object_joint0" type="free" limited="false"></joint>
+			<geom size="0.024 0.024 0.024" type="box" name="object" material="block_mat" density="50000" condim="4" friction="1 1 1" solimp="1 1 1" solref="0.02 1"></geom>
+			<site name="object_site" pos="0 0 0" size="0.024 0.024 0.024" rgba="0 0 0 0" type="box"></site>
+		</body>
+
+		<light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="1.65 0 10" dir="-0.57 -0.57 -0.57" name="light0"></light>
+        <light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="0 -4 4" dir="0 1 -0.1" name="light1"></light>
+        <light directional="true" ambient="0.05 0.05 0.05" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="2.13 1.6 2.5" name="light2"></light>
+        <light pos="0 0 2" dir="0.2 0.2 -0.8" directional="true"  diffuse="0.3 0.3 0.3"  castshadow="false" name="light3"></light>
+
+		<camera fovy="50" name="camera0" pos="0.9559 1.0 1.1" euler="-1.1 -0.6 3.4" />
+	</worldbody>
+
+	<equality>
+    	<connect body2="left_finger" body1="left_inner_knuckle" anchor="0.0 0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+    	<connect body2="right_finger" body1="right_inner_knuckle" anchor="0.0 -0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+        <joint joint1="left_inner_knuckle_joint" joint2="right_inner_knuckle_joint"></joint>
+    </equality>
+
+    <actuator>
+    	<motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="left_inner_knuckle_joint" gear="200.0"/>
+        <motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="right_inner_knuckle_joint" gear="200.0"/>
+    </actuator>
+</mujoco>

envs/sim_xarm/xarm/tasks/assets/reach.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<mujoco>
+	<compiler angle="radian" coordinate="local" meshdir="mesh" texturedir="texture"></compiler>
+	<size nconmax="2000" njmax="500"/>
+
+	<option timestep="0.002">
+		<flag warmstart="enable"></flag>
+	</option>
+
+	<include file="shared.xml"></include>
+
+	<worldbody>
+		<body name="floor0" pos="0 0 0">
+			<geom name="floorgeom0" pos="1.2 -2.0 0" size="1.0 10.0 1" type="plane" condim="3" material="floor_mat"></geom>
+			<site name="target0" pos="1.605 0.3 0.58" size="0.0475 0.001" rgba="1 0 0 1" type="cylinder"></site>
+		</body>
+
+		<include file="xarm.xml"></include>
+
+		<body pos="0.75 0 0.6325" name="pedestal0">
+			<geom name="pedestalgeom0" size="0.1 0.1 0.01" pos="0.32 0.27 0" type="box" mass="2000" material="pedestal_mat"></geom>
+			<site pos="0.30 0.30 0" size="0.075 0.075 0.002" type="box" name="robotmountsite0" rgba="0.55 0.54 0.53 1" />
+		</body>
+
+		<body pos="1.5 0.075 0.3425" name="table0">
+			<geom name="tablegeom0" size="0.3 0.6 0.2" pos="0 0 0" type="box" material="table_mat" density="2000" friction="1 0.005 0.0002"></geom>
+		</body>
+
+		<light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="1.65 0 10" dir="-0.57 -0.57 -0.57" name="light0"></light>
+        <light directional="true" ambient="0.1 0.1 0.1" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="0 -4 4" dir="0 1 -0.1" name="light1"></light>
+        <light directional="true" ambient="0.05 0.05 0.05" diffuse="0 0 0" specular="0 0 0" castshadow="false" pos="2.13 1.6 2.5" name="light2"></light>
+        <light pos="0 0 2" dir="0.2 0.2 -0.8" directional="true"  diffuse="0.3 0.3 0.3"  castshadow="false" name="light3"></light>
+
+		<camera fovy="50" name="camera0" pos="0.9559 1.0 1.1" euler="-1.1 -0.6 3.4" />
+	</worldbody>
+
+	<equality>
+    	<connect body2="left_finger" body1="left_inner_knuckle" anchor="0.0 0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+    	<connect body2="right_finger" body1="right_inner_knuckle" anchor="0.0 -0.035 0.042" solimp="0.9 0.95 0.001 0.5 2" solref="0.0002 1.0" ></connect>
+        <joint joint1="left_inner_knuckle_joint" joint2="right_inner_knuckle_joint"></joint>
+    </equality>
+
+    <actuator>
+    	<motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="left_inner_knuckle_joint" gear="200.0"/>
+        <motor ctrllimited="true" ctrlrange="-1.0 1.0" joint="right_inner_knuckle_joint" gear="200.0"/>
+    </actuator>
+</mujoco>

envs/sim_xarm/xarm/tasks/assets/shared.xml

@@ -0,0 +1,51 @@
+<mujoco>
+    <asset>
+        <texture type="skybox" builtin="gradient" rgb1="0.0 0.0 0.0" rgb2="0.0 0.0 0.0" width="32" height="32"></texture>
+        <material name="floor_mat" specular="0" shininess="0.0" reflectance="0" rgba="0.043 0.055 0.051 1"></material>
+
+        <material name="table_mat" specular="0.2" shininess="0.2" reflectance="0" rgba="1 1 1 1"></material>
+        <material name="pedestal_mat" specular="0.35" shininess="0.5" reflectance="0" rgba="0.705 0.585 0.405 1"></material>
+        <material name="block_mat" specular="0.5" shininess="0.9" reflectance="0.05" rgba="0.373 0.678 0.627 1"></material>
+
+        <material name="robot0:geomMat" shininess="0.03" specular="0.4"></material>
+        <material name="robot0:gripper_finger_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+        <material name="robot0:gripper_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+        <material name="background:gripper_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+        <material name="robot0:arm_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+        <material name="robot0:head_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+        <material name="robot0:torso_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+        <material name="robot0:base_mat" shininess="0.03" specular="0.4" reflectance="0"></material>
+
+        <mesh name="link_base" file="link_base.stl" />
+        <mesh name="link1" file="link1.stl" />
+        <mesh name="link2" file="link2.stl" />
+        <mesh name="link3" file="link3.stl" />
+        <mesh name="link4" file="link4.stl" />
+        <mesh name="link5" file="link5.stl" />
+        <mesh name="link6" file="link6.stl" />
+        <mesh name="link7" file="link7.stl" />
+        <mesh name="base_link" file="base_link.stl" />
+        <mesh name="left_outer_knuckle" file="left_outer_knuckle.stl" />
+        <mesh name="left_finger" file="left_finger.stl" />
+        <mesh name="left_inner_knuckle" file="left_inner_knuckle.stl" />
+        <mesh name="right_outer_knuckle" file="right_outer_knuckle.stl" />
+        <mesh name="right_finger" file="right_finger.stl" />
+        <mesh name="right_inner_knuckle" file="right_inner_knuckle.stl" />
+    </asset>
+
+    <equality>
+        <weld body1="robot0:mocap2" body2="link7" solimp="0.9 0.95 0.001" solref="0.02 1"></weld>
+    </equality>
+
+    <default>
+        <joint armature="1" damping="0.1" limited="true"/>
+         <default class="robot0:blue">
+            <geom rgba="0.086 0.506 0.767 1.0"></geom>
+        </default>
+
+        <default class="robot0:grey">
+            <geom rgba="0.356 0.361 0.376 1.0"></geom>
+        </default>
+    </default>
+
+</mujoco>

envs/sim_xarm/xarm/tasks/assets/xarm.xml

@@ -0,0 +1,88 @@
+<mujoco model="xarm7">
+    <body mocap="true" name="robot0:mocap2" pos="0 0 0">
+        <geom conaffinity="0" contype="0" pos="0 0 0" rgba="0 0.5 0 0" size="0.005 0.005 0.005" type="box"></geom>
+        <geom conaffinity="0" contype="0" pos="0 0 0" rgba="0.5 0 0 0" size="1 0.005 0.005" type="box"></geom>
+        <geom conaffinity="0" contype="0" pos="0 0 0" rgba="0 0 0.5 0" size="0.005 1 0.001" type="box"></geom>
+        <geom conaffinity="0" contype="0" pos="0 0 0" rgba="0.5 0.5 0 0" size="0.005 0.005 1" type="box"></geom>
+    </body>
+
+    <body name="link0" pos="1.09 0.28 0.655">
+        <geom name="bb" type="mesh" mesh="link_base" material="robot0:base_mat" rgba="1 1 1 1"/>
+        <body name="link1" pos="0 0 0.267">
+            <inertial pos="-0.0042142 0.02821 -0.0087788" quat="0.917781 -0.277115 0.0606681 0.277858" mass="0.42603" diaginertia="0.00144551 0.00137757 0.000823511" />
+            <joint name="joint1" pos="0 0 0" axis="0 0 1" limited="true" range="-6.28319 6.28319" damping="10" frictionloss="1" />
+            <geom name="j1" type="mesh" mesh="link1" material="robot0:arm_mat" rgba="1 1 1 1"/>
+            <body name="link2" pos="0 0 0" quat="0.707105 -0.707108 0 0">
+                <inertial pos="-3.3178e-05 -0.12849 0.026337" quat="0.447793 0.894132 -0.00224061 0.00218314" mass="0.56095" diaginertia="0.00319151 0.00311598 0.000980804" />
+                <joint name="joint2" pos="0 0 0" axis="0 0 1" limited="true" range="-2.059 2.0944" damping="10" frictionloss="1" />
+                <geom name="j2"  type="mesh" mesh="link2" material="robot0:head_mat" rgba="1 1 1 1"/>
+                <body name="link3" pos="0 -0.293 0" quat="0.707105 0.707108 0 0">
+                    <inertial pos="0.04223 -0.023258 -0.0096674" quat="0.883205 0.339803 0.323238 0.000542237" mass="0.44463" diaginertia="0.00133227 0.00119126 0.000780475" />
+                    <joint name="joint3" pos="0 0 0" axis="0 0 1" limited="true" range="-6.28319 6.28319" damping="5" frictionloss="1" />
+                    <geom name="j3" type="mesh" mesh="link3" material="robot0:gripper_mat" rgba="1 1 1 1"/>
+                    <body name="link4" pos="0.0525 0 0" quat="0.707105 0.707108 0 0">
+                        <inertial pos="0.067148 -0.10732 0.024479" quat="0.0654142 0.483317 -0.738663 0.465298" mass="0.52387" diaginertia="0.00288984 0.00282705 0.000894409" />
+                        <joint name="joint4" pos="0 0 0" axis="0 0 1" limited="true" range="-0.19198 3.927" damping="5" frictionloss="1" />
+                        <geom name="j4" type="mesh" mesh="link4" material="robot0:arm_mat" rgba="1 1 1 1"/>
+                        <body name="link5" pos="0.0775 -0.3425 0" quat="0.707105 0.707108 0 0">
+                            <inertial pos="-0.00023397 0.036705 -0.080064" quat="0.981064 -0.19003 0.00637998 0.0369004" mass="0.18554" diaginertia="0.00099553 0.000988613 0.000247126" />
+                            <joint name="joint5" pos="0 0 0" axis="0 0 1" limited="true" range="-6.28319 6.28319" damping="5" frictionloss="1" />
+                            <geom name="j5" type="mesh"  material="robot0:gripper_mat" rgba="1 1 1 1" mesh="link5" />
+                            <body name="link6" pos="0 0 0" quat="0.707105 0.707108 0 0">
+                                <inertial pos="0.058911 0.028469 0.0068428" quat="-0.188705 0.793535 0.166088 0.554173" mass="0.31344" diaginertia="0.000827892 0.000768871 0.000386708" />
+                                <joint name="joint6" pos="0 0 0" axis="0 0 1" limited="true" range="-1.69297 3.14159" damping="2" frictionloss="1" />
+                                <geom name="j6" type="mesh" material="robot0:gripper_mat" rgba="1 1 1 1" mesh="link6" />
+                                <body name="link7" pos="0.076 0.097 0" quat="0.707105 -0.707108 0 0">
+                                    <inertial pos="-0.000420033 -0.00287433 0.0257078" quat="0.999372 -0.0349129 -0.00605634 0.000551744" mass="0.85624" diaginertia="0.00137671 0.00118744 0.000514968" />
+                                    <joint name="joint7" pos="0 0 0" axis="0 0 1" limited="true" range="-6.28319 6.28319" damping="2" frictionloss="1" />
+                                    <geom name="j8" material="robot0:gripper_mat" type="mesh" rgba="0.753 0.753 0.753 1" mesh="link7" />
+                                    <geom name="j9" material="robot0:gripper_mat" type="mesh" rgba="1 1 1 1" mesh="base_link" />
+                                    <site name="grasp" pos="0 0 0.16" rgba="1 0 0 0" type="sphere" size="0.01" group="1"/>
+                                    <body name="left_outer_knuckle" pos="0 0.035 0.059098">
+                                        <inertial pos="0 0.021559 0.015181" quat="0.47789 0.87842 0 0" mass="0.033618" diaginertia="1.9111e-05 1.79089e-05 1.90167e-06" />
+                                        <joint name="drive_joint" pos="0 0 0" axis="1 0 0" limited="true" range="0 0.85" />
+                                        <geom type="mesh" rgba="0 0 0 1" conaffinity="1" contype="0"  mesh="left_outer_knuckle" />
+                                        <body name="left_finger" pos="0 0.035465 0.042039">
+                                            <inertial pos="0 -0.016413 0.029258" quat="0.697634 0.115353 -0.115353 0.697634" mass="0.048304" diaginertia="1.88037e-05 1.7493e-05 3.56792e-06" />
+                                            <joint name="left_finger_joint" pos="0 0 0" axis="-1 0 0" limited="true" range="0 0.85" />
+                                            <geom name="j10" material="robot0:gripper_finger_mat" type="mesh" rgba="0 0 0 1" conaffinity="3" contype="2"  mesh="left_finger" friction='1.5 1.5 1.5' solref='0.01 1' solimp='0.99 0.99 0.01'/>
+                                            <body name="right_hand" pos="0 -0.03 0.05" quat="-0.7071 0 0 0.7071">
+                                                <site name="ee" pos="0 0 0" rgba="0 0 1 0" type="sphere" group="1"/>
+                                                <site name="ee_x" pos="0 0 0" size="0.005 .1"  quat="0.707105 0.707108 0 0 " rgba="1 0 0 0" type="cylinder" group="1"/>
+                                                <site name="ee_z" pos="0 0 0" size="0.005 .1" quat="0.707105 0 0 0.707108" rgba="0 0 1 0" type="cylinder" group="1"/>
+                                                <site name="ee_y" pos="0 0 0" size="0.005 .1" quat="0.707105 0 0.707108 0 " rgba="0 1 0 0" type="cylinder" group="1"/>
+                                            </body>
+                                        </body>
+                                    </body>
+                                    <body name="left_inner_knuckle" pos="0 0.02 0.074098">
+                                        <inertial pos="1.86601e-06 0.0220468 0.0261335" quat="0.664139 -0.242732 0.242713 0.664146" mass="0.0230126" diaginertia="8.34216e-06 6.0949e-06 2.75601e-06" />
+                                        <joint name="left_inner_knuckle_joint" pos="0 0 0" axis="1 0 0" limited="true" range="0 0.85" />
+                                        <geom type="mesh" rgba="0 0 0 1" conaffinity="1" contype="0"  mesh="left_inner_knuckle" friction='1.5 1.5 1.5' solref='0.01 1' solimp='0.99 0.99 0.01'/>
+                                    </body>
+                                    <body name="right_outer_knuckle" pos="0 -0.035 0.059098">
+                                        <inertial pos="0 -0.021559 0.015181" quat="0.87842 0.47789 0 0" mass="0.033618" diaginertia="1.9111e-05 1.79089e-05 1.90167e-06" />
+                                        <joint name="right_outer_knuckle_joint" pos="0 0 0" axis="-1 0 0" limited="true" range="0 0.85" />
+                                        <geom type="mesh" rgba="0 0 0 1" conaffinity="1" contype="0"  mesh="right_outer_knuckle" />
+                                        <body name="right_finger" pos="0 -0.035465 0.042039">
+                                            <inertial pos="0 0.016413 0.029258" quat="0.697634 -0.115356 0.115356 0.697634" mass="0.048304" diaginertia="1.88038e-05 1.7493e-05 3.56779e-06" />
+                                            <joint name="right_finger_joint" pos="0 0 0" axis="1 0 0" limited="true" range="0 0.85" />
+                                            <geom name="j11" material="robot0:gripper_finger_mat" type="mesh" rgba="0 0 0 1" conaffinity="3" contype="2" mesh="right_finger" friction='1.5 1.5 1.5' solref='0.01 1' solimp='0.99 0.99 0.01'/>
+                                            <body name="left_hand" pos="0 0.03 0.05" quat="-0.7071 0 0 0.7071">
+                                                <site name="ee_2" pos="0 0 0" rgba="1 0 0 0" type="sphere" size="0.01" group="1"/>
+                                            </body>
+                                        </body>
+                                    </body>
+                                    <body name="right_inner_knuckle" pos="0 -0.02 0.074098">
+                                        <inertial pos="1.866e-06 -0.022047 0.026133" quat="0.66415 0.242702 -0.242721 0.664144" mass="0.023013" diaginertia="8.34209e-06 6.0949e-06 2.75601e-06" />
+                                        <joint name="right_inner_knuckle_joint" pos="0 0 0" axis="-1 0 0" limited="true" range="0 0.85" />
+                                        <geom type="mesh" rgba="0 0 0 1" conaffinity="1" contype="0" mesh="right_inner_knuckle" friction='1.5 1.5 1.5' solref='0.01 1' solimp='0.99 0.99 0.01'/>
+                                    </body>
+                                </body>
+                            </body>
+                        </body>
+                    </body>
+                </body>
+            </body>
+        </body>
+    </body>
+</mujoco>

envs/sim_xarm/xarm/tasks/base.py

@@ -0,0 +1,145 @@
+import os
+
+import mujoco
+import numpy as np
+from gymnasium_robotics.envs import robot_env
+
+from xarm.tasks import mocap
+
+
+class Base(robot_env.MujocoRobotEnv):
+    """
+    Superclass for all simxarm environments.
+    Args:
+            xml_name (str): name of the xml environment file
+            gripper_rotation (list): initial rotation of the gripper (given as a quaternion)
+    """
+
+    def __init__(self, xml_name, gripper_rotation=None):
+        if gripper_rotation is None:
+            gripper_rotation = [0, 1, 0, 0]
+        self.gripper_rotation = np.array(gripper_rotation, dtype=np.float32)
+        self.center_of_table = np.array([1.655, 0.3, 0.63625])
+        self.max_z = 1.2
+        self.min_z = 0.2
+        super().__init__(
+            model_path=os.path.join(os.path.dirname(__file__), "assets", xml_name + ".xml"),
+            n_substeps=20,
+            n_actions=4,
+            initial_qpos={},
+        )
+
+    @property
+    def dt(self):
+        return self.n_substeps * self.model.opt.timestep
+
+    @property
+    def eef(self):
+        return self._utils.get_site_xpos(self.model, self.data, "grasp")
+
+    @property
+    def obj(self):
+        return self._utils.get_site_xpos(self.model, self.data, "object_site")
+
+    @property
+    def robot_state(self):
+        gripper_angle = self._utils.get_joint_qpos(self.model, self.data, "right_outer_knuckle_joint")
+        return np.concatenate([self.eef, gripper_angle])
+
+    def is_success(self):
+        return NotImplementedError()
+
+    def get_reward(self):
+        raise NotImplementedError()
+
+    def _sample_goal(self):
+        raise NotImplementedError()
+
+    def get_obs(self):
+        return self._get_obs()
+
+    def _step_callback(self):
+        self._mujoco.mj_forward(self.model, self.data)
+
+    def _limit_gripper(self, gripper_pos, pos_ctrl):
+        if gripper_pos[0] > self.center_of_table[0] - 0.105 + 0.15:
+            pos_ctrl[0] = min(pos_ctrl[0], 0)
+        if gripper_pos[0] < self.center_of_table[0] - 0.105 - 0.3:
+            pos_ctrl[0] = max(pos_ctrl[0], 0)
+        if gripper_pos[1] > self.center_of_table[1] + 0.3:
+            pos_ctrl[1] = min(pos_ctrl[1], 0)
+        if gripper_pos[1] < self.center_of_table[1] - 0.3:
+            pos_ctrl[1] = max(pos_ctrl[1], 0)
+        if gripper_pos[2] > self.max_z:
+            pos_ctrl[2] = min(pos_ctrl[2], 0)
+        if gripper_pos[2] < self.min_z:
+            pos_ctrl[2] = max(pos_ctrl[2], 0)
+        return pos_ctrl
+
+    def _apply_action(self, action):
+        assert action.shape == (4,)
+        action = action.copy()
+        pos_ctrl, gripper_ctrl = action[:3], action[3]
+        pos_ctrl = self._limit_gripper(
+            self._utils.get_site_xpos(self.model, self.data, "grasp"), pos_ctrl
+        ) * (1 / self.n_substeps)
+        gripper_ctrl = np.array([gripper_ctrl, gripper_ctrl])
+        mocap.apply_action(
+            self.model,
+            self._model_names,
+            self.data,
+            np.concatenate([pos_ctrl, self.gripper_rotation, gripper_ctrl]),
+        )
+
+    def _render_callback(self):
+        self._mujoco.mj_forward(self.model, self.data)
+
+    def _reset_sim(self):
+        self.data.time = self.initial_time
+        self.data.qpos[:] = np.copy(self.initial_qpos)
+        self.data.qvel[:] = np.copy(self.initial_qvel)
+        self._sample_goal()
+        self._mujoco.mj_step(self.model, self.data, nstep=10)
+        return True
+
+    def _set_gripper(self, gripper_pos, gripper_rotation):
+        self._utils.set_mocap_pos(self.model, self.data, "robot0:mocap", gripper_pos)
+        self._utils.set_mocap_quat(self.model, self.data, "robot0:mocap", gripper_rotation)
+        self._utils.set_joint_qpos(self.model, self.data, "right_outer_knuckle_joint", 0)
+        self.data.qpos[10] = 0.0
+        self.data.qpos[12] = 0.0
+
+    def _env_setup(self, initial_qpos):
+        for name, value in initial_qpos.items():
+            self.data.set_joint_qpos(name, value)
+        mocap.reset(self.model, self.data)
+        mujoco.mj_forward(self.model, self.data)
+        self._sample_goal()
+        mujoco.mj_forward(self.model, self.data)
+
+    def reset(self):
+        self._reset_sim()
+        return self._get_obs()
+
+    def step(self, action):
+        assert action.shape == (4,)
+        assert self.action_space.contains(action), "{!r} ({}) invalid".format(action, type(action))
+        self._apply_action(action)
+        self._mujoco.mj_step(self.model, self.data, nstep=2)
+        self._step_callback()
+        obs = self._get_obs()
+        reward = self.get_reward()
+        done = False
+        info = {"is_success": self.is_success(), "success": self.is_success()}
+        return obs, reward, done, info
+
+    def render(self, mode="rgb_array", width=384, height=384):
+        self._render_callback()
+        # HACK
+        self.model.vis.global_.offwidth = width
+        self.model.vis.global_.offheight = height
+        return self.mujoco_renderer.render(mode)
+
+    def close(self):
+        if self.mujoco_renderer is not None:
+            self.mujoco_renderer.close()

envs/sim_xarm/xarm/tasks/lift.py

@@ -0,0 +1,100 @@
+import numpy as np
+
+from xarm import Base
+
+
+class Lift(Base):
+    def __init__(self):
+        self._z_threshold = 0.15
+        super().__init__("lift")
+
+    @property
+    def z_target(self):
+        return self._init_z + self._z_threshold
+
+    def is_success(self):
+        return self.obj[2] >= self.z_target
+
+    def get_reward(self):
+        reach_dist = np.linalg.norm(self.obj - self.eef)
+        reach_dist_xy = np.linalg.norm(self.obj[:-1] - self.eef[:-1])
+        pick_completed = self.obj[2] >= (self.z_target - 0.01)
+        obj_dropped = (self.obj[2] < (self._init_z + 0.005)) and (reach_dist > 0.02)
+
+        # Reach
+        if reach_dist < 0.05:
+            reach_reward = -reach_dist + max(self._action[-1], 0) / 50
+        elif reach_dist_xy < 0.05:
+            reach_reward = -reach_dist
+        else:
+            z_bonus = np.linalg.norm(np.linalg.norm(self.obj[-1] - self.eef[-1]))
+            reach_reward = -reach_dist - 2 * z_bonus
+
+        # Pick
+        if pick_completed and not obj_dropped:
+            pick_reward = self.z_target
+        elif (reach_dist < 0.1) and (self.obj[2] > (self._init_z + 0.005)):
+            pick_reward = min(self.z_target, self.obj[2])
+        else:
+            pick_reward = 0
+
+        return reach_reward / 100 + pick_reward
+
+    def _get_obs(self):
+        eef_velp = self._utils.get_site_xvelp(self.model, self.data, "grasp") * self.dt
+        gripper_angle = self._utils.get_joint_qpos(self.model, self.data, "right_outer_knuckle_joint")
+        eef = self.eef - self.center_of_table
+
+        obj = self.obj - self.center_of_table
+        obj_rot = self._utils.get_joint_qpos(self.model, self.data, "object_joint0")[-4:]
+        obj_velp = self._utils.get_site_xvelp(self.model, self.data, "object_site") * self.dt
+        obj_velr = self._utils.get_site_xvelr(self.model, self.data, "object_site") * self.dt
+
+        obs = np.concatenate(
+            [
+                eef,
+                eef_velp,
+                obj,
+                obj_rot,
+                obj_velp,
+                obj_velr,
+                eef - obj,
+                np.array(
+                    [
+                        np.linalg.norm(eef - obj),
+                        np.linalg.norm(eef[:-1] - obj[:-1]),
+                        self.z_target,
+                        self.z_target - obj[-1],
+                        self.z_target - eef[-1],
+                    ]
+                ),
+                gripper_angle,
+            ],
+            axis=0,
+        )
+        return {"observation": obs, "state": eef, "achieved_goal": eef, "desired_goal": eef}
+
+    def _sample_goal(self):
+        # Gripper
+        gripper_pos = np.array([1.280, 0.295, 0.735]) + self.np_random.uniform(-0.05, 0.05, size=3)
+        super()._set_gripper(gripper_pos, self.gripper_rotation)
+
+        # Object
+        object_pos = self.center_of_table - np.array([0.15, 0.10, 0.07])
+        object_pos[0] += self.np_random.uniform(-0.05, 0.05, size=1)
+        object_pos[1] += self.np_random.uniform(-0.05, 0.05, size=1)
+        object_qpos = self._utils.get_joint_qpos(self.model, self.data, "object_joint0")
+        object_qpos[:3] = object_pos
+        self._utils.set_joint_qpos(self.model, self.data, "object_joint0", object_qpos)
+        self._init_z = object_pos[2]
+
+        # Goal
+        return object_pos + np.array([0, 0, self._z_threshold])
+
+    def reset(self):
+        self._action = np.zeros(4)
+        return super().reset()
+
+    def step(self, action):
+        self._action = action.copy()
+        return super().step(action)

envs/sim_xarm/xarm/tasks/mocap.py

@@ -0,0 +1,67 @@
+# import mujoco_py
+import mujoco
+import numpy as np
+
+
+def apply_action(model, model_names, data, action):
+    if model.nmocap > 0:
+        pos_action, gripper_action = np.split(action, (model.nmocap * 7,))
+        if data.ctrl is not None:
+            for i in range(gripper_action.shape[0]):
+                data.ctrl[i] = gripper_action[i]
+        pos_action = pos_action.reshape(model.nmocap, 7)
+        pos_delta, quat_delta = pos_action[:, :3], pos_action[:, 3:]
+        reset_mocap2body_xpos(model, model_names, data)
+        data.mocap_pos[:] = data.mocap_pos + pos_delta
+        data.mocap_quat[:] = data.mocap_quat + quat_delta
+
+
+def reset(model, data):
+    if model.nmocap > 0 and model.eq_data is not None:
+        for i in range(model.eq_data.shape[0]):
+            # if sim.model.eq_type[i] == mujoco_py.const.EQ_WELD:
+            if model.eq_type[i] == mujoco.mjtEq.mjEQ_WELD:
+                # model.eq_data[i, :] = np.array([0., 0., 0., 1., 0., 0., 0.])
+                model.eq_data[i, :] = np.array(
+                    [
+                        0.0,
+                        0.0,
+                        0.0,
+                        1.0,
+                        0.0,
+                        0.0,
+                        0.0,
+                        0.0,
+                        0.0,
+                        0.0,
+                        0.0,
+                    ]
+                )
+    # sim.forward()
+    mujoco.mj_forward(model, data)
+
+
+def reset_mocap2body_xpos(model, model_names, data):
+    if model.eq_type is None or model.eq_obj1id is None or model.eq_obj2id is None:
+        return
+
+    # For all weld constraints
+    for eq_type, obj1_id, obj2_id in zip(model.eq_type, model.eq_obj1id, model.eq_obj2id, strict=False):
+        # if eq_type != mujoco_py.const.EQ_WELD:
+        if eq_type != mujoco.mjtEq.mjEQ_WELD:
+            continue
+        # body2 = model.body_id2name(obj2_id)
+        body2 = model_names.body_id2name[obj2_id]
+        if body2 == "B0" or body2 == "B9" or body2 == "B1":
+            continue
+        mocap_id = model.body_mocapid[obj1_id]
+        if mocap_id != -1:
+            # obj1 is the mocap, obj2 is the welded body
+            body_idx = obj2_id
+        else:
+            # obj2 is the mocap, obj1 is the welded body
+            mocap_id = model.body_mocapid[obj2_id]
+            body_idx = obj1_id
+        assert mocap_id != -1
+        data.mocap_pos[mocap_id][:] = data.xpos[body_idx]
+        data.mocap_quat[mocap_id][:] = data.xquat[body_idx]

envs/sim_xarm/xarm/tasks/peg_in_box.py

@@ -0,0 +1,86 @@
+import numpy as np
+
+from xarm import Base
+
+
+class PegInBox(Base):
+    def __init__(self):
+        super().__init__("peg_in_box")
+
+    def _reset_sim(self):
+        self._act_magnitude = 0
+        super()._reset_sim()
+        for _ in range(10):
+            self._apply_action(np.array([0, 0, 0, 1], dtype=np.float32))
+            self.sim.step()
+
+    @property
+    def box(self):
+        return self.sim.data.get_site_xpos("box_site")
+
+    def is_success(self):
+        return np.linalg.norm(self.obj - self.box) <= 0.05
+
+    def get_reward(self):
+        dist_xy = np.linalg.norm(self.obj[:2] - self.box[:2])
+        dist_xyz = np.linalg.norm(self.obj - self.box)
+        return float(dist_xy <= 0.045) * (2 - 6 * dist_xyz) - 0.2 * np.square(self._act_magnitude) - dist_xy
+
+    def _get_obs(self):
+        eef_velp = self.sim.data.get_site_xvelp("grasp") * self.dt
+        gripper_angle = self.sim.data.get_joint_qpos("right_outer_knuckle_joint")
+        eef, box = self.eef - self.center_of_table, self.box - self.center_of_table
+
+        obj = self.obj - self.center_of_table
+        obj_rot = self.sim.data.get_joint_qpos("object_joint0")[-4:]
+        obj_velp = self.sim.data.get_site_xvelp("object_site") * self.dt
+        obj_velr = self.sim.data.get_site_xvelr("object_site") * self.dt
+
+        obs = np.concatenate(
+            [
+                eef,
+                eef_velp,
+                box,
+                obj,
+                obj_rot,
+                obj_velp,
+                obj_velr,
+                eef - box,
+                eef - obj,
+                obj - box,
+                np.array(
+                    [
+                        np.linalg.norm(eef - box),
+                        np.linalg.norm(eef - obj),
+                        np.linalg.norm(obj - box),
+                        gripper_angle,
+                    ]
+                ),
+            ],
+            axis=0,
+        )
+        return {"observation": obs, "state": eef, "achieved_goal": eef, "desired_goal": box}
+
+    def _sample_goal(self):
+        # Gripper
+        gripper_pos = np.array([1.280, 0.295, 0.9]) + self.np_random.uniform(-0.05, 0.05, size=3)
+        super()._set_gripper(gripper_pos, self.gripper_rotation)
+
+        # Object
+        object_pos = gripper_pos - np.array([0, 0, 0.06]) + self.np_random.uniform(-0.005, 0.005, size=3)
+        object_qpos = self.sim.data.get_joint_qpos("object_joint0")
+        object_qpos[:3] = object_pos
+        self.sim.data.set_joint_qpos("object_joint0", object_qpos)
+
+        # Box
+        box_pos = np.array([1.61, 0.18, 0.58])
+        box_pos[:2] += self.np_random.uniform(-0.11, 0.11, size=2)
+        box_qpos = self.sim.data.get_joint_qpos("box_joint0")
+        box_qpos[:3] = box_pos
+        self.sim.data.set_joint_qpos("box_joint0", box_qpos)
+
+        return self.box
+
+    def step(self, action):
+        self._act_magnitude = np.linalg.norm(action[:3])
+        return super().step(action)

envs/sim_xarm/xarm/tasks/push.py

@@ -0,0 +1,78 @@
+import numpy as np
+
+from xarm import Base
+
+
+class Push(Base):
+    def __init__(self):
+        super().__init__("push")
+
+    def _reset_sim(self):
+        self._act_magnitude = 0
+        super()._reset_sim()
+
+    def is_success(self):
+        return np.linalg.norm(self.obj - self.goal) <= 0.05
+
+    def get_reward(self):
+        dist = np.linalg.norm(self.obj - self.goal)
+        penalty = self._act_magnitude**2
+        return -(dist + 0.15 * penalty)
+
+    def _get_obs(self):
+        eef_velp = self.sim.data.get_site_xvelp("grasp") * self.dt
+        gripper_angle = self.sim.data.get_joint_qpos("right_outer_knuckle_joint")
+        eef, goal = self.eef - self.center_of_table, self.goal - self.center_of_table
+
+        obj = self.obj - self.center_of_table
+        obj_rot = self.sim.data.get_joint_qpos("object_joint0")[-4:]
+        obj_velp = self.sim.data.get_site_xvelp("object_site") * self.dt
+        obj_velr = self.sim.data.get_site_xvelr("object_site") * self.dt
+
+        obs = np.concatenate(
+            [
+                eef,
+                eef_velp,
+                goal,
+                obj,
+                obj_rot,
+                obj_velp,
+                obj_velr,
+                eef - goal,
+                eef - obj,
+                obj - goal,
+                np.array(
+                    [
+                        np.linalg.norm(eef - goal),
+                        np.linalg.norm(eef - obj),
+                        np.linalg.norm(obj - goal),
+                        gripper_angle,
+                    ]
+                ),
+            ],
+            axis=0,
+        )
+        return {"observation": obs, "state": eef, "achieved_goal": eef, "desired_goal": goal}
+
+    def _sample_goal(self):
+        # Gripper
+        gripper_pos = np.array([1.280, 0.295, 0.735]) + self.np_random.uniform(-0.05, 0.05, size=3)
+        super()._set_gripper(gripper_pos, self.gripper_rotation)
+
+        # Object
+        object_pos = self.center_of_table - np.array([0.25, 0, 0.07])
+        object_pos[0] += self.np_random.uniform(-0.08, 0.08, size=1)
+        object_pos[1] += self.np_random.uniform(-0.08, 0.08, size=1)
+        object_qpos = self.sim.data.get_joint_qpos("object_joint0")
+        object_qpos[:3] = object_pos
+        self.sim.data.set_joint_qpos("object_joint0", object_qpos)
+
+        # Goal
+        self.goal = np.array([1.600, 0.200, 0.545])
+        self.goal[:2] += self.np_random.uniform(-0.1, 0.1, size=2)
+        self.sim.model.site_pos[self.sim.model.site_name2id("target0")] = self.goal
+        return self.goal
+
+    def step(self, action):
+        self._act_magnitude = np.linalg.norm(action[:3])
+        return super().step(action)

envs/sim_xarm/xarm/tasks/reach.py

@@ -0,0 +1,44 @@
+import numpy as np
+
+from xarm import Base
+
+
+class Reach(Base):
+    def __init__(self):
+        super().__init__("reach")
+
+    def _reset_sim(self):
+        self._act_magnitude = 0
+        super()._reset_sim()
+
+    def is_success(self):
+        return np.linalg.norm(self.eef - self.goal) <= 0.05
+
+    def get_reward(self):
+        dist = np.linalg.norm(self.eef - self.goal)
+        penalty = self._act_magnitude**2
+        return -(dist + 0.15 * penalty)
+
+    def _get_obs(self):
+        eef_velp = self.sim.data.get_site_xvelp("grasp") * self.dt
+        gripper_angle = self.sim.data.get_joint_qpos("right_outer_knuckle_joint")
+        eef, goal = self.eef - self.center_of_table, self.goal - self.center_of_table
+        obs = np.concatenate(
+            [eef, eef_velp, goal, eef - goal, np.array([np.linalg.norm(eef - goal), gripper_angle])], axis=0
+        )
+        return {"observation": obs, "state": eef, "achieved_goal": eef, "desired_goal": goal}
+
+    def _sample_goal(self):
+        # Gripper
+        gripper_pos = np.array([1.280, 0.295, 0.735]) + self.np_random.uniform(-0.05, 0.05, size=3)
+        super()._set_gripper(gripper_pos, self.gripper_rotation)
+
+        # Goal
+        self.goal = np.array([1.550, 0.287, 0.580])
+        self.goal[:2] += self.np_random.uniform(-0.125, 0.125, size=2)
+        self.sim.model.site_pos[self.sim.model.site_name2id("target0")] = self.goal
+        return self.goal
+
+    def step(self, action):
+        self._act_magnitude = np.linalg.norm(action[:3])
+        return super().step(action)

examples/1_load_lerobot_dataset.py

@@ -1,91 +0,0 @@
-"""
-This script demonstrates the use of `LeRobotDataset` class for handling and processing robotic datasets from Hugging Face.
-It illustrates how to load datasets, manipulate them, and apply transformations suitable for machine learning tasks in PyTorch.
-
-Features included in this script:
-- Loading a dataset and accessing its properties.
-- Filtering data by episode number.
-- Converting tensor data for visualization.
-- Saving video files from dataset frames.
-- Using advanced dataset features like timestamp-based frame selection.
-- Demonstrating compatibility with PyTorch DataLoader for batch processing.
-
-The script ends with examples of how to batch process data using PyTorch's DataLoader.
-"""
-
-from pathlib import Path
-from pprint import pprint
-
-import imageio
-import torch
-
-import lerobot
-from lerobot.common.datasets.lerobot_dataset import LeRobotDataset
-
-print("List of available datasets:")
-pprint(lerobot.available_datasets)
-
-# Let's take one for this example
-repo_id = "lerobot/pusht"
-
-# You can easily load a dataset from a Hugging Face repository
-dataset = LeRobotDataset(repo_id)
-
-# LeRobotDataset is actually a thin wrapper around an underlying Hugging Face dataset
-# (see https://huggingface.co/docs/datasets/index for more information).
-print(dataset)
-print(dataset.hf_dataset)
-
-# And provides additional utilities for robotics and compatibility with Pytorch
-print(f"\naverage number of frames per episode: {dataset.num_samples / dataset.num_episodes:.3f}")
-print(f"frames per second used during data collection: {dataset.fps=}")
-print(f"keys to access images from cameras: {dataset.camera_keys=}\n")
-
-# Access frame indexes associated to first episode
-episode_index = 0
-from_idx = dataset.episode_data_index["from"][episode_index].item()
-to_idx = dataset.episode_data_index["to"][episode_index].item()
-
-# LeRobot datasets actually subclass PyTorch datasets so you can do everything you know and love from working
-# with the latter, like iterating through the dataset. Here we grab all the image frames.
-frames = [dataset[idx]["observation.image"] for idx in range(from_idx, to_idx)]
-
-# Video frames are now float32 in range [0,1] channel first (c,h,w) to follow pytorch convention. To visualize
-# them, we convert to uint8 in range [0,255]
-frames = [(frame * 255).type(torch.uint8) for frame in frames]
-# and to channel last (h,w,c).
-frames = [frame.permute((1, 2, 0)).numpy() for frame in frames]
-
-# Finally, we save the frames to a mp4 video for visualization.
-Path("outputs/examples/1_load_lerobot_dataset").mkdir(parents=True, exist_ok=True)
-imageio.mimsave("outputs/examples/1_load_lerobot_dataset/episode_0.mp4", frames, fps=dataset.fps)
-
-# For many machine learning applications we need to load the history of past observations or trajectories of
-# future actions. Our datasets can load previous and future frames for each key/modality, using timestamps
-# differences with the current loaded frame. For instance:
-delta_timestamps = {
-    # loads 4 images: 1 second before current frame, 500 ms before, 200 ms before, and current frame
-    "observation.image": [-1, -0.5, -0.20, 0],
-    # loads 8 state vectors: 1.5 seconds before, 1 second before, ... 20 ms, 10 ms, and current frame
-    "observation.state": [-1.5, -1, -0.5, -0.20, -0.10, -0.02, -0.01, 0],
-    # loads 64 action vectors: current frame, 1 frame in the future, 2 frames, ... 63 frames in the future
-    "action": [t / dataset.fps for t in range(64)],
-}
-dataset = LeRobotDataset(repo_id, delta_timestamps=delta_timestamps)
-print(f"\n{dataset[0]['observation.image'].shape=}")  # (4,c,h,w)
-print(f"{dataset[0]['observation.state'].shape=}")  # (8,c)
-print(f"{dataset[0]['action'].shape=}\n")  # (64,c)
-
-# Finally, our datasets are fully compatible with PyTorch dataloaders and samplers because they are just
-# PyTorch datasets.
-dataloader = torch.utils.data.DataLoader(
-    dataset,
-    num_workers=0,
-    batch_size=32,
-    shuffle=True,
-)
-for batch in dataloader:
-    print(f"{batch['observation.image'].shape=}")  # (32,4,c,h,w)
-    print(f"{batch['observation.state'].shape=}")  # (32,8,c)
-    print(f"{batch['action'].shape=}")  # (32,64,c)
-    break

examples/1_visualize_dataset.py

@@ -0,0 +1,24 @@
+import os
+
+from torchrl.data.replay_buffers import SamplerWithoutReplacement
+
+import lerobot
+from lerobot.common.datasets.aloha import AlohaDataset
+from lerobot.scripts.visualize_dataset import render_dataset
+
+print(lerobot.available_datasets)
+# >>> ['aloha_sim_insertion_human', 'aloha_sim_insertion_scripted', 'aloha_sim_transfer_cube_human', 'aloha_sim_transfer_cube_scripted', 'pusht', 'xarm_lift_medium']
+
+# we use this sampler to sample 1 frame after the other
+sampler = SamplerWithoutReplacement(shuffle=False)
+
+dataset = AlohaDataset("aloha_sim_transfer_cube_human", sampler=sampler, root=os.environ.get("DATA_DIR"))
+
+video_paths = render_dataset(
+    dataset,
+    out_dir="outputs/visualize_dataset/example",
+    max_num_samples=300,
+    fps=50,
+)
+print(video_paths)
+# ['outputs/visualize_dataset/example/episode_0.mp4']

examples/2_evaluate_pretrained_policy.py

@@ -1,112 +1 @@
-"""
-This scripts demonstrates how to evaluate a pretrained policy from the HuggingFace Hub or from your local
-training outputs directory. In the latter case, you might want to run examples/3_train_policy.py first.
-"""
-
-from pathlib import Path
-
-import gym_pusht  # noqa: F401
-import gymnasium as gym
-import imageio
-import numpy
-import torch
-from huggingface_hub import snapshot_download
-
-from lerobot.common.policies.diffusion.modeling_diffusion import DiffusionPolicy
-
-# Create a directory to store the video of the evaluation
-output_directory = Path("outputs/eval/example_pusht_diffusion")
-output_directory.mkdir(parents=True, exist_ok=True)
-
-device = torch.device("cuda")
-
-# Download the diffusion policy for pusht environment
-pretrained_policy_path = Path(snapshot_download("lerobot/diffusion_pusht"))
-# OR uncomment the following to evaluate a policy from the local outputs/train folder.
-# pretrained_policy_path = Path("outputs/train/example_pusht_diffusion")
-
-policy = DiffusionPolicy.from_pretrained(pretrained_policy_path)
-policy.eval()
-policy.to(device)
-
-# Initialize evaluation environment to render two observation types:
-# an image of the scene and state/position of the agent. The environment
-# also automatically stops running after 300 interactions/steps.
-env = gym.make(
-    "gym_pusht/PushT-v0",
-    obs_type="pixels_agent_pos",
-    max_episode_steps=300,
-)
-
-# Reset the policy and environmens to prepare for rollout
-policy.reset()
-numpy_observation, info = env.reset(seed=42)
-
-# Prepare to collect every rewards and all the frames of the episode,
-# from initial state to final state.
-rewards = []
-frames = []
-
-# Render frame of the initial state
-frames.append(env.render())
-
-step = 0
-done = False
-while not done:
-    # Prepare observation for the policy running in Pytorch
-    state = torch.from_numpy(numpy_observation["agent_pos"])
-    image = torch.from_numpy(numpy_observation["pixels"])
-
-    # Convert to float32 with image from channel first in [0,255]
-    # to channel last in [0,1]
-    state = state.to(torch.float32)
-    image = image.to(torch.float32) / 255
-    image = image.permute(2, 0, 1)
-
-    # Send data tensors from CPU to GPU
-    state = state.to(device, non_blocking=True)
-    image = image.to(device, non_blocking=True)
-
-    # Add extra (empty) batch dimension, required to forward the policy
-    state = state.unsqueeze(0)
-    image = image.unsqueeze(0)
-
-    # Create the policy input dictionary
-    observation = {
-        "observation.state": state,
-        "observation.image": image,
-    }
-
-    # Predict the next action with respect to the current observation
-    with torch.inference_mode():
-        action = policy.select_action(observation)
-
-    # Prepare the action for the environment
-    numpy_action = action.squeeze(0).to("cpu").numpy()
-
-    # Step through the environment and receive a new observation
-    numpy_observation, reward, terminated, truncated, info = env.step(numpy_action)
-    print(f"{step=} {reward=} {terminated=}")
-
-    # Keep track of all the rewards and frames
-    rewards.append(reward)
-    frames.append(env.render())
-
-    # The rollout is considered done when the success state is reach (i.e. terminated is True),
-    # or the maximum number of iterations is reached (i.e. truncated is True)
-    done = terminated | truncated | done
-    step += 1
-
-if terminated:
-    print("Success!")
-else:
-    print("Failure!")
-
-# Get the speed of environment (i.e. its number of frames per second).
-fps = env.metadata["render_fps"]
-
-# Encode all frames into a mp4 video.
-video_path = output_directory / "rollout.mp4"
-imageio.mimsave(str(video_path), numpy.stack(frames), fps=fps)
-
-print(f"Video of the evaluation is available in '{video_path}'.")
+# TODO

examples/3_train_policy.py

@@ -1,79 +1 @@
-"""This scripts demonstrates how to train Diffusion Policy on the PushT environment.
-
-Once you have trained a model with this script, you can try to evaluate it on
-examples/2_evaluate_pretrained_policy.py
-"""
-
-from pathlib import Path
-
-import torch
-
-from lerobot.common.datasets.lerobot_dataset import LeRobotDataset
-from lerobot.common.policies.diffusion.configuration_diffusion import DiffusionConfig
-from lerobot.common.policies.diffusion.modeling_diffusion import DiffusionPolicy
-
-# Create a directory to store the training checkpoint.
-output_directory = Path("outputs/train/example_pusht_diffusion")
-output_directory.mkdir(parents=True, exist_ok=True)
-
-# Number of offline training steps (we'll only do offline training for this example.)
-# Adjust as you prefer. 5000 steps are needed to get something worth evaluating.
-training_steps = 5000
-device = torch.device("cuda")
-log_freq = 250
-
-# Set up the dataset.
-delta_timestamps = {
-    # Load the previous image and state at -0.1 seconds before current frame,
-    # then load current image and state corresponding to 0.0 second.
-    "observation.image": [-0.1, 0.0],
-    "observation.state": [-0.1, 0.0],
-    # Load the previous action (-0.1), the next action to be executed (0.0),
-    # and 14 future actions with a 0.1 seconds spacing. All these actions will be
-    # used to supervise the policy.
-    "action": [-0.1, 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4],
-}
-dataset = LeRobotDataset("lerobot/pusht", delta_timestamps=delta_timestamps)
-
-# Set up the the policy.
-# Policies are initialized with a configuration class, in this case `DiffusionConfig`.
-# For this example, no arguments need to be passed because the defaults are set up for PushT.
-# If you're doing something different, you will likely need to change at least some of the defaults.
-cfg = DiffusionConfig()
-policy = DiffusionPolicy(cfg, dataset_stats=dataset.stats)
-policy.train()
-policy.to(device)
-
-optimizer = torch.optim.Adam(policy.parameters(), lr=1e-4)
-
-# Create dataloader for offline training.
-dataloader = torch.utils.data.DataLoader(
-    dataset,
-    num_workers=4,
-    batch_size=64,
-    shuffle=True,
-    pin_memory=device != torch.device("cpu"),
-    drop_last=True,
-)
-
-# Run training loop.
-step = 0
-done = False
-while not done:
-    for batch in dataloader:
-        batch = {k: v.to(device, non_blocking=True) for k, v in batch.items()}
-        output_dict = policy.forward(batch)
-        loss = output_dict["loss"]
-        loss.backward()
-        optimizer.step()
-        optimizer.zero_grad()
-
-        if step % log_freq == 0:
-            print(f"step: {step} loss: {loss.item():.3f}")
-        step += 1
-        if step >= training_steps:
-            done = True
-            break
-
-# Save a policy checkpoint.
-policy.save_pretrained(output_directory)
+# TODO

examples/4_calculate_validation_loss.py

@@ -1,90 +0,0 @@
-"""This script demonstrates how to slice a dataset and calculate the loss on a subset of the data.
-
-This technique can be useful for debugging and testing purposes, as well as identifying whether a policy
-is learning effectively.
-
-Furthermore, relying on validation loss to evaluate performance is generally not considered a good practice,
-especially in the context of imitation learning. The most reliable approach is to evaluate the policy directly
-on the target environment, whether that be in simulation or the real world.
-"""
-
-import math
-from pathlib import Path
-
-import torch
-from huggingface_hub import snapshot_download
-
-from lerobot.common.datasets.lerobot_dataset import LeRobotDataset
-from lerobot.common.policies.diffusion.modeling_diffusion import DiffusionPolicy
-
-device = torch.device("cuda")
-
-# Download the diffusion policy for pusht environment
-pretrained_policy_path = Path(snapshot_download("lerobot/diffusion_pusht"))
-# OR uncomment the following to evaluate a policy from the local outputs/train folder.
-# pretrained_policy_path = Path("outputs/train/example_pusht_diffusion")
-
-policy = DiffusionPolicy.from_pretrained(pretrained_policy_path)
-policy.eval()
-policy.to(device)
-
-# Set up the dataset.
-delta_timestamps = {
-    # Load the previous image and state at -0.1 seconds before current frame,
-    # then load current image and state corresponding to 0.0 second.
-    "observation.image": [-0.1, 0.0],
-    "observation.state": [-0.1, 0.0],
-    # Load the previous action (-0.1), the next action to be executed (0.0),
-    # and 14 future actions with a 0.1 seconds spacing. All these actions will be
-    # used to calculate the loss.
-    "action": [-0.1, 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4],
-}
-
-# Load the last 10% of episodes of the dataset as a validation set.
-# - Load full dataset
-full_dataset = LeRobotDataset("lerobot/pusht", split="train")
-# - Calculate train and val subsets
-num_train_episodes = math.floor(full_dataset.num_episodes * 90 / 100)
-num_val_episodes = full_dataset.num_episodes - num_train_episodes
-print(f"Number of episodes in full dataset: {full_dataset.num_episodes}")
-print(f"Number of episodes in training dataset (90% subset): {num_train_episodes}")
-print(f"Number of episodes in validation dataset (10% subset): {num_val_episodes}")
-# - Get first frame index of the validation set
-first_val_frame_index = full_dataset.episode_data_index["from"][num_train_episodes].item()
-# - Load frames subset belonging to validation set using the `split` argument.
-#   It utilizes the `datasets` library's syntax for slicing datasets.
-#   For more information on the Slice API, please see:
-#   https://huggingface.co/docs/datasets/v2.19.0/loading#slice-splits
-train_dataset = LeRobotDataset(
-    "lerobot/pusht", split=f"train[:{first_val_frame_index}]", delta_timestamps=delta_timestamps
-)
-val_dataset = LeRobotDataset(
-    "lerobot/pusht", split=f"train[{first_val_frame_index}:]", delta_timestamps=delta_timestamps
-)
-print(f"Number of frames in training dataset (90% subset): {len(train_dataset)}")
-print(f"Number of frames in validation dataset (10% subset): {len(val_dataset)}")
-
-# Create dataloader for evaluation.
-val_dataloader = torch.utils.data.DataLoader(
-    val_dataset,
-    num_workers=4,
-    batch_size=64,
-    shuffle=False,
-    pin_memory=device != torch.device("cpu"),
-    drop_last=False,
-)
-
-# Run validation loop.
-loss_cumsum = 0
-n_examples_evaluated = 0
-for batch in val_dataloader:
-    batch = {k: v.to(device, non_blocking=True) for k, v in batch.items()}
-    output_dict = policy.forward(batch)
-
-    loss_cumsum += output_dict["loss"].item()
-    n_examples_evaluated += batch["index"].shape[0]
-
-# Calculate the average loss over the validation set.
-average_loss = loss_cumsum / n_examples_evaluated
-
-print(f"Average loss on validation set: {average_loss:.4f}")

lerobot/__init__.py

@@ -1,18 +1,3 @@
-#!/usr/bin/env python
-
-# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 """
 This file contains lists of available environments, dataset and policies to reflect the current state of LeRobot library.
 We do not want to import all the dependencies, but instead we keep it lightweight to ensure fast access to these variables.
@@ -22,111 +7,53 @@ Example:
         import lerobot
         print(lerobot.available_envs)
         print(lerobot.available_tasks_per_env)
-        print(lerobot.available_datasets)
         print(lerobot.available_datasets_per_env)
-        print(lerobot.available_real_world_datasets)
+        print(lerobot.available_datasets)
         print(lerobot.available_policies)
-        print(lerobot.available_policies_per_env)
     ```
 
-When implementing a new dataset loadable with LeRobotDataset follow these steps:
-- Update `available_datasets_per_env` in `lerobot/__init__.py`
-
-When implementing a new environment (e.g. `gym_aloha`), follow these steps:
-- Update `available_tasks_per_env` and `available_datasets_per_env` in `lerobot/__init__.py`
-
-When implementing a new policy class (e.g. `DiffusionPolicy`) follow these steps:
-- Update `available_policies` and `available_policies_per_env`, in `lerobot/__init__.py`
-- Set the required `name` class attribute.
-- Update variables in `tests/test_available.py` by importing your new Policy class
+Note:
+    When implementing a concrete class (e.g. `AlohaDataset`, `PushtEnv`, `DiffusionPolicy`), you need to:
+        1. set the required class attributes:
+            - for classes inheriting from `AbstractDataset`: `available_datasets`
+            - for classes inheriting from `AbstractEnv`: `name`, `available_tasks`
+            - for classes inheriting from `AbstractPolicy`: `name`
+        2. update variables in `lerobot/__init__.py` (e.g. `available_envs`, `available_datasets_per_envs`, `available_policies`)
+        3. update variables in `tests/test_available.py` by importing your new class
 """
 
-import itertools
-
 from lerobot.__version__ import __version__  # noqa: F401
 
+available_envs = [
+    "aloha",
+    "pusht",
+    "simxarm",
+]
+
 available_tasks_per_env = {
     "aloha": [
-        "AlohaInsertion-v0",
-        "AlohaTransferCube-v0",
+        "sim_insertion",
+        "sim_transfer_cube",
     ],
-    "pusht": ["PushT-v0"],
-    "xarm": ["XarmLift-v0"],
+    "pusht": ["pusht"],
+    "simxarm": ["lift"],
 }
-available_envs = list(available_tasks_per_env.keys())
 
 available_datasets_per_env = {
     "aloha": [
-        "lerobot/aloha_sim_insertion_human",
-        "lerobot/aloha_sim_insertion_scripted",
-        "lerobot/aloha_sim_transfer_cube_human",
-        "lerobot/aloha_sim_transfer_cube_scripted",
-        "lerobot/aloha_sim_insertion_human_image",
-        "lerobot/aloha_sim_insertion_scripted_image",
-        "lerobot/aloha_sim_transfer_cube_human_image",
-        "lerobot/aloha_sim_transfer_cube_scripted_image",
-    ],
-    "pusht": ["lerobot/pusht", "lerobot/pusht_image"],
-    "xarm": [
-        "lerobot/xarm_lift_medium",
-        "lerobot/xarm_lift_medium_replay",
-        "lerobot/xarm_push_medium",
-        "lerobot/xarm_push_medium_replay",
-        "lerobot/xarm_lift_medium_image",
-        "lerobot/xarm_lift_medium_replay_image",
-        "lerobot/xarm_push_medium_image",
-        "lerobot/xarm_push_medium_replay_image",
+        "aloha_sim_insertion_human",
+        "aloha_sim_insertion_scripted",
+        "aloha_sim_transfer_cube_human",
+        "aloha_sim_transfer_cube_scripted",
     ],
+    "pusht": ["pusht"],
+    "simxarm": ["xarm_lift_medium"],
 }
 
-available_real_world_datasets = [
-    "lerobot/aloha_mobile_cabinet",
-    "lerobot/aloha_mobile_chair",
-    "lerobot/aloha_mobile_elevator",
-    "lerobot/aloha_mobile_shrimp",
-    "lerobot/aloha_mobile_wash_pan",
-    "lerobot/aloha_mobile_wipe_wine",
-    "lerobot/aloha_static_battery",
-    "lerobot/aloha_static_candy",
-    "lerobot/aloha_static_coffee",
-    "lerobot/aloha_static_coffee_new",
-    "lerobot/aloha_static_cups_open",
-    "lerobot/aloha_static_fork_pick_up",
-    "lerobot/aloha_static_pingpong_test",
-    "lerobot/aloha_static_pro_pencil",
-    "lerobot/aloha_static_screw_driver",
-    "lerobot/aloha_static_tape",
-    "lerobot/aloha_static_thread_velcro",
-    "lerobot/aloha_static_towel",
-    "lerobot/aloha_static_vinh_cup",
-    "lerobot/aloha_static_vinh_cup_left",
-    "lerobot/aloha_static_ziploc_slide",
-    "lerobot/umi_cup_in_the_wild",
-]
-
-available_datasets = list(
-    itertools.chain(*available_datasets_per_env.values(), available_real_world_datasets)
-)
+available_datasets = [dataset for env in available_envs for dataset in available_datasets_per_env[env]]
 
 available_policies = [
     "act",
     "diffusion",
     "tdmpc",
 ]
-
-available_policies_per_env = {
-    "aloha": ["act"],
-    "pusht": ["diffusion"],
-    "xarm": ["tdmpc"],
-}
-
-env_task_pairs = [(env, task) for env, tasks in available_tasks_per_env.items() for task in tasks]
-env_dataset_pairs = [
-    (env, dataset) for env, datasets in available_datasets_per_env.items() for dataset in datasets
-]
-env_dataset_policy_triplets = [
-    (env, dataset, policy)
-    for env, datasets in available_datasets_per_env.items()
-    for dataset in datasets
-    for policy in available_policies_per_env[env]
-]

lerobot/__version__.py

@@ -1,18 +1,3 @@
-#!/usr/bin/env python
-
-# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 """To enable `lerobot.__version__`"""
 
 from importlib.metadata import PackageNotFoundError, version

lerobot/common/datasets/_video_benchmark/README.md

@@ -1,334 +0,0 @@
-# Video benchmark
-
-
-## Questions
-
-What is the optimal trade-off between:
-- maximizing loading time with random access,
-- minimizing memory space on disk,
-- maximizing success rate of policies?
-
-How to encode videos?
-- How much compression (`-crf`)? Low compression with `0`, normal compression with `20` or extreme with `56`?
-- What pixel format to use (`-pix_fmt`)? `yuv444p` or `yuv420p`?
-- How many key frames (`-g`)? A key frame every `10` frames?
-
-How to decode videos?
-- Which `decoder`? `torchvision`, `torchaudio`, `ffmpegio`, `decord`, or `nvc`?
-
-## Metrics
-
-**Percentage of data compression (higher is better)**
-`compression_factor` is the ratio of the memory space on disk taken by the original images to encode, to the memory space taken by the encoded video. For instance, `compression_factor=4` means that the video takes 4 times less memory space on disk compared to the original images.
-
-**Percentage of loading time (higher is better)**
-`load_time_factor` is the ratio of the time it takes to load original images at given timestamps, to the time it takes to decode the exact same frames from the video. Higher is better. For instance, `load_time_factor=0.5` means that decoding from video is 2 times slower than loading the original images.
-
-**Average L2 error per pixel (lower is better)**
-`avg_per_pixel_l2_error` is the average L2 error between each decoded frame and its corresponding original image over all requested timestamps, and also divided by the number of pixels in the image to be comparable when switching to different image sizes.
-
-**Loss of a pretrained policy (higher is better)** (not available)
-`loss_pretrained` is the result of evaluating with the selected encoding/decoding settings a policy pretrained on original images. It is easier to understand than `avg_l2_error`.
-
-**Success rate after retraining (higher is better)** (not available)
-`success_rate` is the result of training and evaluating a policy with the selected encoding/decoding settings. It is the most difficult metric to get but also the very best.
-
-
-## Variables
-
-**Image content**
-We don't expect the same optimal settings for a dataset of images from a simulation, or from real-world in an appartment, or in a factory, or outdoor, etc. Hence, we run this benchmark on two datasets: `pusht` (simulation) and `umi` (real-world outdoor).
-
-**Requested timestamps**
-In this benchmark, we focus on the loading time of random access, so we are not interested in sequentially loading all frames of a video like in a movie. However, the number of consecutive timestamps requested and their spacing can greatly affect the `load_time_factor`. In fact, it is expected to get faster loading time by decoding a large number of consecutive frames from a video, than to load the same data from individual images. To reflect our robotics use case, we consider a few settings:
-- `single_frame`: 1 frame,
-- `2_frames`: 2 consecutive frames (e.g. `[t, t + 1 / fps]`),
-- `2_frames_4_space`: 2 consecutive frames with 4 frames of spacing (e.g `[t, t + 4 / fps]`),
-
-**Data augmentations**
-We might revisit this benchmark and find better settings if we train our policies with various data augmentations to make them more robust (e.g. robust to color changes, compression, etc.).
-
-
-## Results
-
-**`decoder`**
-| repo_id | decoder | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- |
-| lerobot/pusht | <span style="color: #32CD32;">torchvision</span> | 0.166 | 0.0000119 |
-| lerobot/pusht | ffmpegio | 0.009 | 0.0001182 |
-| lerobot/pusht | torchaudio | 0.138 | 0.0000359 |
-| lerobot/umi_cup_in_the_wild | <span style="color: #32CD32;">torchvision</span> | 0.174 | 0.0000174 |
-| lerobot/umi_cup_in_the_wild | ffmpegio | 0.010 | 0.0000735 |
-| lerobot/umi_cup_in_the_wild | torchaudio | 0.154 | 0.0000340 |
-
-### `1_frame`
-
-**`pix_fmt`**
-| repo_id | pix_fmt | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | yuv420p | 3.788 | 0.224 | 0.0000760 |
-| lerobot/pusht | yuv444p | 3.646 | 0.185 | 0.0000443 |
-| lerobot/umi_cup_in_the_wild | yuv420p | 14.391 | 0.388 | 0.0000469 |
-| lerobot/umi_cup_in_the_wild | yuv444p | 14.932 | 0.329 | 0.0000397 |
-
-**`g`**
-| repo_id | g | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 1 | 2.543 | 0.204 | 0.0000556 |
-| lerobot/pusht | 2 | 3.646 | 0.182 | 0.0000443 |
-| lerobot/pusht | 3 | 4.431 | 0.174 | 0.0000450 |
-| lerobot/pusht | 4 | 5.103 | 0.163 | 0.0000448 |
-| lerobot/pusht | 5 | 5.625 | 0.163 | 0.0000436 |
-| lerobot/pusht | 6 | 5.974 | 0.155 | 0.0000427 |
-| lerobot/pusht | 10 | 6.814 | 0.130 | 0.0000410 |
-| lerobot/pusht | 15 | 7.431 | 0.105 | 0.0000406 |
-| lerobot/pusht | 20 | 7.662 | 0.097 | 0.0000400 |
-| lerobot/pusht | 40 | 8.163 | 0.061 | 0.0000405 |
-| lerobot/pusht | 100 | 8.761 | 0.039 | 0.0000422 |
-| lerobot/pusht | None | 8.909 | 0.024 | 0.0000431 |
-| lerobot/umi_cup_in_the_wild | 1 | 14.411 | 0.444 | 0.0000601 |
-| lerobot/umi_cup_in_the_wild | 2 | 14.932 | 0.345 | 0.0000397 |
-| lerobot/umi_cup_in_the_wild | 3 | 20.174 | 0.282 | 0.0000416 |
-| lerobot/umi_cup_in_the_wild | 4 | 24.889 | 0.271 | 0.0000415 |
-| lerobot/umi_cup_in_the_wild | 5 | 28.825 | 0.260 | 0.0000415 |
-| lerobot/umi_cup_in_the_wild | 6 | 31.635 | 0.249 | 0.0000415 |
-| lerobot/umi_cup_in_the_wild | 10 | 39.418 | 0.195 | 0.0000399 |
-| lerobot/umi_cup_in_the_wild | 15 | 44.577 | 0.169 | 0.0000394 |
-| lerobot/umi_cup_in_the_wild | 20 | 47.907 | 0.140 | 0.0000390 |
-| lerobot/umi_cup_in_the_wild | 40 | 52.554 | 0.096 | 0.0000384 |
-| lerobot/umi_cup_in_the_wild | 100 | 58.241 | 0.046 | 0.0000390 |
-| lerobot/umi_cup_in_the_wild | None | 60.530 | 0.022 | 0.0000400 |
-
-**`crf`**
-| repo_id | crf | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 0 | 1.699 | 0.175 | 0.0000035 |
-| lerobot/pusht | 5 | 1.409 | 0.181 | 0.0000080 |
-| lerobot/pusht | 10 | 1.842 | 0.172 | 0.0000123 |
-| lerobot/pusht | 15 | 2.322 | 0.187 | 0.0000211 |
-| lerobot/pusht | 20 | 3.050 | 0.181 | 0.0000346 |
-| lerobot/pusht | None | 3.646 | 0.189 | 0.0000443 |
-| lerobot/pusht | 25 | 3.969 | 0.186 | 0.0000521 |
-| lerobot/pusht | 30 | 5.687 | 0.184 | 0.0000850 |
-| lerobot/pusht | 40 | 10.818 | 0.193 | 0.0001726 |
-| lerobot/pusht | 50 | 18.185 | 0.183 | 0.0002606 |
-| lerobot/umi_cup_in_the_wild | 0 | 1.918 | 0.165 | 0.0000056 |
-| lerobot/umi_cup_in_the_wild | 5 | 3.207 | 0.171 | 0.0000111 |
-| lerobot/umi_cup_in_the_wild | 10 | 4.818 | 0.212 | 0.0000153 |
-| lerobot/umi_cup_in_the_wild | 15 | 7.329 | 0.261 | 0.0000218 |
-| lerobot/umi_cup_in_the_wild | 20 | 11.361 | 0.312 | 0.0000317 |
-| lerobot/umi_cup_in_the_wild | None | 14.932 | 0.339 | 0.0000397 |
-| lerobot/umi_cup_in_the_wild | 25 | 17.741 | 0.297 | 0.0000452 |
-| lerobot/umi_cup_in_the_wild | 30 | 27.983 | 0.406 | 0.0000629 |
-| lerobot/umi_cup_in_the_wild | 40 | 82.449 | 0.468 | 0.0001184 |
-| lerobot/umi_cup_in_the_wild | 50 | 186.145 | 0.515 | 0.0001879 |
-
-**best**
-| repo_id | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- |
-| lerobot/pusht | 3.646 | 0.188 | 0.0000443 |
-| lerobot/umi_cup_in_the_wild | 14.932 | 0.339 | 0.0000397 |
-
-### `2_frames`
-
-**`pix_fmt`**
-| repo_id | pix_fmt | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | yuv420p | 3.788 | 0.314 | 0.0000799 |
-| lerobot/pusht | yuv444p | 3.646 | 0.303 | 0.0000496 |
-| lerobot/umi_cup_in_the_wild | yuv420p | 14.391 | 0.642 | 0.0000503 |
-| lerobot/umi_cup_in_the_wild | yuv444p | 14.932 | 0.529 | 0.0000436 |
-
-**`g`**
-| repo_id | g | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 1 | 2.543 | 0.308 | 0.0000599 |
-| lerobot/pusht | 2 | 3.646 | 0.279 | 0.0000496 |
-| lerobot/pusht | 3 | 4.431 | 0.259 | 0.0000498 |
-| lerobot/pusht | 4 | 5.103 | 0.243 | 0.0000501 |
-| lerobot/pusht | 5 | 5.625 | 0.235 | 0.0000492 |
-| lerobot/pusht | 6 | 5.974 | 0.230 | 0.0000481 |
-| lerobot/pusht | 10 | 6.814 | 0.194 | 0.0000468 |
-| lerobot/pusht | 15 | 7.431 | 0.152 | 0.0000460 |
-| lerobot/pusht | 20 | 7.662 | 0.151 | 0.0000455 |
-| lerobot/pusht | 40 | 8.163 | 0.095 | 0.0000454 |
-| lerobot/pusht | 100 | 8.761 | 0.062 | 0.0000472 |
-| lerobot/pusht | None | 8.909 | 0.037 | 0.0000479 |
-| lerobot/umi_cup_in_the_wild | 1 | 14.411 | 0.638 | 0.0000625 |
-| lerobot/umi_cup_in_the_wild | 2 | 14.932 | 0.537 | 0.0000436 |
-| lerobot/umi_cup_in_the_wild | 3 | 20.174 | 0.493 | 0.0000437 |
-| lerobot/umi_cup_in_the_wild | 4 | 24.889 | 0.458 | 0.0000446 |
-| lerobot/umi_cup_in_the_wild | 5 | 28.825 | 0.438 | 0.0000445 |
-| lerobot/umi_cup_in_the_wild | 6 | 31.635 | 0.424 | 0.0000444 |
-| lerobot/umi_cup_in_the_wild | 10 | 39.418 | 0.345 | 0.0000435 |
-| lerobot/umi_cup_in_the_wild | 15 | 44.577 | 0.313 | 0.0000417 |
-| lerobot/umi_cup_in_the_wild | 20 | 47.907 | 0.264 | 0.0000421 |
-| lerobot/umi_cup_in_the_wild | 40 | 52.554 | 0.185 | 0.0000414 |
-| lerobot/umi_cup_in_the_wild | 100 | 58.241 | 0.090 | 0.0000420 |
-| lerobot/umi_cup_in_the_wild | None | 60.530 | 0.042 | 0.0000424 |
-
-**`crf`**
-| repo_id | crf | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 0 | 1.699 | 0.302 | 0.0000097 |
-| lerobot/pusht | 5 | 1.409 | 0.287 | 0.0000142 |
-| lerobot/pusht | 10 | 1.842 | 0.283 | 0.0000184 |
-| lerobot/pusht | 15 | 2.322 | 0.305 | 0.0000268 |
-| lerobot/pusht | 20 | 3.050 | 0.285 | 0.0000402 |
-| lerobot/pusht | None | 3.646 | 0.285 | 0.0000496 |
-| lerobot/pusht | 25 | 3.969 | 0.293 | 0.0000572 |
-| lerobot/pusht | 30 | 5.687 | 0.293 | 0.0000893 |
-| lerobot/pusht | 40 | 10.818 | 0.319 | 0.0001762 |
-| lerobot/pusht | 50 | 18.185 | 0.304 | 0.0002626 |
-| lerobot/umi_cup_in_the_wild | 0 | 1.918 | 0.235 | 0.0000112 |
-| lerobot/umi_cup_in_the_wild | 5 | 3.207 | 0.261 | 0.0000166 |
-| lerobot/umi_cup_in_the_wild | 10 | 4.818 | 0.333 | 0.0000207 |
-| lerobot/umi_cup_in_the_wild | 15 | 7.329 | 0.406 | 0.0000267 |
-| lerobot/umi_cup_in_the_wild | 20 | 11.361 | 0.489 | 0.0000361 |
-| lerobot/umi_cup_in_the_wild | None | 14.932 | 0.537 | 0.0000436 |
-| lerobot/umi_cup_in_the_wild | 25 | 17.741 | 0.578 | 0.0000487 |
-| lerobot/umi_cup_in_the_wild | 30 | 27.983 | 0.453 | 0.0000655 |
-| lerobot/umi_cup_in_the_wild | 40 | 82.449 | 0.767 | 0.0001192 |
-| lerobot/umi_cup_in_the_wild | 50 | 186.145 | 0.816 | 0.0001881 |
-
-**best**
-| repo_id | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- |
-| lerobot/pusht | 3.646 | 0.283 | 0.0000496 |
-| lerobot/umi_cup_in_the_wild | 14.932 | 0.543 | 0.0000436 |
-
-### `2_frames_4_space`
-
-**`pix_fmt`**
-| repo_id | pix_fmt | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | yuv420p | 3.788 | 0.257 | 0.0000855 |
-| lerobot/pusht | yuv444p | 3.646 | 0.261 | 0.0000556 |
-| lerobot/umi_cup_in_the_wild | yuv420p | 14.391 | 0.493 | 0.0000476 |
-| lerobot/umi_cup_in_the_wild | yuv444p | 14.932 | 0.371 | 0.0000404 |
-
-**`g`**
-| repo_id | g | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 1 | 2.543 | 0.226 | 0.0000670 |
-| lerobot/pusht | 2 | 3.646 | 0.222 | 0.0000556 |
-| lerobot/pusht | 3 | 4.431 | 0.217 | 0.0000567 |
-| lerobot/pusht | 4 | 5.103 | 0.204 | 0.0000555 |
-| lerobot/pusht | 5 | 5.625 | 0.179 | 0.0000556 |
-| lerobot/pusht | 6 | 5.974 | 0.188 | 0.0000544 |
-| lerobot/pusht | 10 | 6.814 | 0.160 | 0.0000531 |
-| lerobot/pusht | 15 | 7.431 | 0.150 | 0.0000521 |
-| lerobot/pusht | 20 | 7.662 | 0.123 | 0.0000519 |
-| lerobot/pusht | 40 | 8.163 | 0.092 | 0.0000519 |
-| lerobot/pusht | 100 | 8.761 | 0.053 | 0.0000533 |
-| lerobot/pusht | None | 8.909 | 0.034 | 0.0000541 |
-| lerobot/umi_cup_in_the_wild | 1 | 14.411 | 0.409 | 0.0000607 |
-| lerobot/umi_cup_in_the_wild | 2 | 14.932 | 0.381 | 0.0000404 |
-| lerobot/umi_cup_in_the_wild | 3 | 20.174 | 0.355 | 0.0000418 |
-| lerobot/umi_cup_in_the_wild | 4 | 24.889 | 0.346 | 0.0000425 |
-| lerobot/umi_cup_in_the_wild | 5 | 28.825 | 0.354 | 0.0000419 |
-| lerobot/umi_cup_in_the_wild | 6 | 31.635 | 0.336 | 0.0000419 |
-| lerobot/umi_cup_in_the_wild | 10 | 39.418 | 0.314 | 0.0000402 |
-| lerobot/umi_cup_in_the_wild | 15 | 44.577 | 0.269 | 0.0000397 |
-| lerobot/umi_cup_in_the_wild | 20 | 47.907 | 0.246 | 0.0000395 |
-| lerobot/umi_cup_in_the_wild | 40 | 52.554 | 0.171 | 0.0000390 |
-| lerobot/umi_cup_in_the_wild | 100 | 58.241 | 0.091 | 0.0000399 |
-| lerobot/umi_cup_in_the_wild | None | 60.530 | 0.043 | 0.0000409 |
-
-**`crf`**
-| repo_id | crf | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 0 | 1.699 | 0.212 | 0.0000193 |
-| lerobot/pusht | 5 | 1.409 | 0.211 | 0.0000232 |
-| lerobot/pusht | 10 | 1.842 | 0.199 | 0.0000270 |
-| lerobot/pusht | 15 | 2.322 | 0.198 | 0.0000347 |
-| lerobot/pusht | 20 | 3.050 | 0.211 | 0.0000469 |
-| lerobot/pusht | None | 3.646 | 0.206 | 0.0000556 |
-| lerobot/pusht | 25 | 3.969 | 0.210 | 0.0000626 |
-| lerobot/pusht | 30 | 5.687 | 0.223 | 0.0000927 |
-| lerobot/pusht | 40 | 10.818 | 0.227 | 0.0001763 |
-| lerobot/pusht | 50 | 18.185 | 0.223 | 0.0002625 |
-| lerobot/umi_cup_in_the_wild | 0 | 1.918 | 0.147 | 0.0000071 |
-| lerobot/umi_cup_in_the_wild | 5 | 3.207 | 0.182 | 0.0000125 |
-| lerobot/umi_cup_in_the_wild | 10 | 4.818 | 0.222 | 0.0000166 |
-| lerobot/umi_cup_in_the_wild | 15 | 7.329 | 0.270 | 0.0000229 |
-| lerobot/umi_cup_in_the_wild | 20 | 11.361 | 0.325 | 0.0000326 |
-| lerobot/umi_cup_in_the_wild | None | 14.932 | 0.362 | 0.0000404 |
-| lerobot/umi_cup_in_the_wild | 25 | 17.741 | 0.390 | 0.0000459 |
-| lerobot/umi_cup_in_the_wild | 30 | 27.983 | 0.437 | 0.0000633 |
-| lerobot/umi_cup_in_the_wild | 40 | 82.449 | 0.499 | 0.0001186 |
-| lerobot/umi_cup_in_the_wild | 50 | 186.145 | 0.564 | 0.0001879 |
-
-**best**
-| repo_id | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- |
-| lerobot/pusht | 3.646 | 0.224 | 0.0000556 |
-| lerobot/umi_cup_in_the_wild | 14.932 | 0.368 | 0.0000404 |
-
-### `6_frames`
-
-**`pix_fmt`**
-| repo_id | pix_fmt | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | yuv420p | 3.788 | 0.660 | 0.0000839 |
-| lerobot/pusht | yuv444p | 3.646 | 0.546 | 0.0000542 |
-| lerobot/umi_cup_in_the_wild | yuv420p | 14.391 | 1.225 | 0.0000497 |
-| lerobot/umi_cup_in_the_wild | yuv444p | 14.932 | 0.908 | 0.0000428 |
-
-**`g`**
-| repo_id | g | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 1 | 2.543 | 0.552 | 0.0000646 |
-| lerobot/pusht | 2 | 3.646 | 0.534 | 0.0000542 |
-| lerobot/pusht | 3 | 4.431 | 0.563 | 0.0000546 |
-| lerobot/pusht | 4 | 5.103 | 0.537 | 0.0000545 |
-| lerobot/pusht | 5 | 5.625 | 0.477 | 0.0000532 |
-| lerobot/pusht | 6 | 5.974 | 0.515 | 0.0000530 |
-| lerobot/pusht | 10 | 6.814 | 0.410 | 0.0000512 |
-| lerobot/pusht | 15 | 7.431 | 0.405 | 0.0000503 |
-| lerobot/pusht | 20 | 7.662 | 0.345 | 0.0000500 |
-| lerobot/pusht | 40 | 8.163 | 0.247 | 0.0000496 |
-| lerobot/pusht | 100 | 8.761 | 0.147 | 0.0000510 |
-| lerobot/pusht | None | 8.909 | 0.100 | 0.0000519 |
-| lerobot/umi_cup_in_the_wild | 1 | 14.411 | 0.997 | 0.0000620 |
-| lerobot/umi_cup_in_the_wild | 2 | 14.932 | 0.911 | 0.0000428 |
-| lerobot/umi_cup_in_the_wild | 3 | 20.174 | 0.869 | 0.0000433 |
-| lerobot/umi_cup_in_the_wild | 4 | 24.889 | 0.874 | 0.0000438 |
-| lerobot/umi_cup_in_the_wild | 5 | 28.825 | 0.864 | 0.0000439 |
-| lerobot/umi_cup_in_the_wild | 6 | 31.635 | 0.834 | 0.0000440 |
-| lerobot/umi_cup_in_the_wild | 10 | 39.418 | 0.781 | 0.0000421 |
-| lerobot/umi_cup_in_the_wild | 15 | 44.577 | 0.679 | 0.0000411 |
-| lerobot/umi_cup_in_the_wild | 20 | 47.907 | 0.652 | 0.0000410 |
-| lerobot/umi_cup_in_the_wild | 40 | 52.554 | 0.465 | 0.0000404 |
-| lerobot/umi_cup_in_the_wild | 100 | 58.241 | 0.245 | 0.0000413 |
-| lerobot/umi_cup_in_the_wild | None | 60.530 | 0.116 | 0.0000417 |
-
-**`crf`**
-| repo_id | crf | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- | --- |
-| lerobot/pusht | 0 | 1.699 | 0.534 | 0.0000163 |
-| lerobot/pusht | 5 | 1.409 | 0.524 | 0.0000205 |
-| lerobot/pusht | 10 | 1.842 | 0.510 | 0.0000245 |
-| lerobot/pusht | 15 | 2.322 | 0.512 | 0.0000324 |
-| lerobot/pusht | 20 | 3.050 | 0.508 | 0.0000452 |
-| lerobot/pusht | None | 3.646 | 0.518 | 0.0000542 |
-| lerobot/pusht | 25 | 3.969 | 0.534 | 0.0000616 |
-| lerobot/pusht | 30 | 5.687 | 0.530 | 0.0000927 |
-| lerobot/pusht | 40 | 10.818 | 0.552 | 0.0001777 |
-| lerobot/pusht | 50 | 18.185 | 0.564 | 0.0002644 |
-| lerobot/umi_cup_in_the_wild | 0 | 1.918 | 0.401 | 0.0000101 |
-| lerobot/umi_cup_in_the_wild | 5 | 3.207 | 0.499 | 0.0000156 |
-| lerobot/umi_cup_in_the_wild | 10 | 4.818 | 0.599 | 0.0000197 |
-| lerobot/umi_cup_in_the_wild | 15 | 7.329 | 0.704 | 0.0000258 |
-| lerobot/umi_cup_in_the_wild | 20 | 11.361 | 0.834 | 0.0000352 |
-| lerobot/umi_cup_in_the_wild | None | 14.932 | 0.925 | 0.0000428 |
-| lerobot/umi_cup_in_the_wild | 25 | 17.741 | 0.978 | 0.0000480 |
-| lerobot/umi_cup_in_the_wild | 30 | 27.983 | 1.088 | 0.0000648 |
-| lerobot/umi_cup_in_the_wild | 40 | 82.449 | 1.324 | 0.0001190 |
-| lerobot/umi_cup_in_the_wild | 50 | 186.145 | 1.436 | 0.0001880 |
-
-**best**
-| repo_id | compression_factor | load_time_factor | avg_per_pixel_l2_error |
-| --- | --- | --- | --- |
-| lerobot/pusht | 3.646 | 0.546 | 0.0000542 |
-| lerobot/umi_cup_in_the_wild | 14.932 | 0.934 | 0.0000428 |