Initial commit

verl/utils/py_functional.py

@@ -0,0 +1,56 @@
+# Copyright 2024 Bytedance Ltd. and/or its affiliates
+#
+# 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.
+"""
+Contain small python utility functions
+"""
+
+from typing import Dict
+from types import SimpleNamespace
+
+
+def union_two_dict(dict1: Dict, dict2: Dict):
+    """Union two dict. Will throw an error if there is an item not the same object with the same key.
+
+    Args:
+        dict1:
+        dict2:
+
+    Returns:
+
+    """
+    for key, val in dict2.items():
+        if key in dict1:
+            assert dict2[key] == dict1[key], \
+                f'{key} in meta_dict1 and meta_dict2 are not the same object'
+        dict1[key] = val
+
+    return dict1
+
+
+def append_to_dict(data: Dict, new_data: Dict):
+    for key, val in new_data.items():
+        if key not in data:
+            data[key] = []
+        data[key].append(val)
+
+
+class NestedNamespace(SimpleNamespace):
+
+    def __init__(self, dictionary, **kwargs):
+        super().__init__(**kwargs)
+        for key, value in dictionary.items():
+            if isinstance(value, dict):
+                self.__setattr__(key, NestedNamespace(value))
+            else:
+                self.__setattr__(key, value)