Visual Studio Code - Python - Windows - Black 运行但不格式化代码

Question

I am running VS Code on Windows and am trying to set up black to format my Python code when saving. It looks like black is running whenever I save, but the file is not getting updated. When I look at the Output > Python tab in VS Code, it looks like black is running with the --diff flag, which is why I'm assuming that the file does not update. Does anyone know how to fix this?

Here is my .vscode/settings.json in the project:

{
    "editor.defaultFormatter": "ms-python.python",
    "python.pythonPath": "C:\\Users\\me\\Anaconda3\\python.exe",
    "python.formatting.provider": "black"
}

Answer 1

The fix for me was to install black package in my virtualenv. Using the one installed at the system level was not working, even though that one worked from terminal, etc.

Answer 2

The --diff has no influence on the formatting.

You can try to format it directly with black in the terminal to check whether it works or not.

If it does not work, you can try to switch to some other formatters.

Answer 3

I had a similar problem (in Ubuntu though) under poetry virtual environment, and I solved by changing the black path to just "black".

I guess somehow giving a path does not operate well with the virtual environment.