ver Jul7th (#255)

pip-installing directly from PyPI fails misteriously in postconfig
execution, possible owing to proxy configuration in the VM, adjusted
strategy by downloading the wheel on host and pip-installing it locally
on VM in thunderbird/d38192b0-17dc-4e1d-99c3-786d0117de77

evaluation_examples/examples/thunderbird/d38192b0-17dc-4e1d-99c3-786d0117de77.json

@@ -58,6 +58,10 @@
             {
               "url": "https://huggingface.co/datasets/xlangai/ubuntu_osworld_file_cache/resolve/main/thunderbird/d38192b0-17dc-4e1d-99c3-786d0117de77/show-thunderbird-attachments.py",
               "path": "/home/user/show-thunderbird-attachments.py"
+            },
+            {
+              "url": "https://files.pythonhosted.org/packages/ee/58/257350f7db99b4ae12b614a36256d9cc870d71d9e451e79c2dc3b23d7c3c/cssselect-1.3.0-py3-none-any.whl",
+              "path": "/home/user/cssselect-1.3.0-py3-none-any.whl"
             }
           ]
         }
@@ -68,7 +72,7 @@
           "command": [
             "pip",
             "install",
-            "cssselect"
+            "/home/user/cssselect-1.3.0-py3-none-any.whl"
           ]
         }
       },
@@ -100,4 +104,4 @@
     }
   },
   "proxy": false
-}
+}