Feature Request: Easily Add Folder to PYTHONPATH from VS Code UI

Hi, I’m not sure if this belongs here or in vscode-python, but I’d like to request a more user-friendly way to add folders to the Python path in VS Code.

Current Situation

• The python.analysis.extraPaths setting only affects IntelliSense, not the runtime PYTHONPATH.
• Using a .env file with PYTHONPATH=path1;path2;path3 is unreliable (in my experience) and not user-friendly.
• Creating a .pth file in .venv/Lib/site-packages/ as below works, but is also tedious and not user-friendly.

path1/src/
path2/src/
...

Feature Proposal

It would be very helpful to have:

• A context menu command when right-clicking a folder (e.g., “Add to Python Path”)
• An accessible command in the Command Palette (Ctrl+Shift+P)
• A button in the python-environments extension UI (it would be very intuitive to have a small icon/button next to each venv in the list. Clicking this button could prompt the user to select a folder, and then automatically add that folder to the venv using the .pth method.)

This should add the folder to the Python path of the currently selected virtual environment in VS Code.

This would make managing the Python path much easier, especially for users coming from PyCharm, where this is a standard feature.

Thanks!

該 issue 未指定檔案、測試或實作進入點；首先確定這屬於 vscode-python 還是 vscode-python-environments，並檢查現有的環境 UI 和命令註冊。要視為完成，需要確定範圍，並提供一種面向使用者的方式，將選取的資料夾新增至目前選取的虛擬環境的 Python 路徑中。