vscode Python formatter

https://marketplace.visualstudio.com/items?itemName=ms-python.black-formatter

Black Formatter - Visual Studio Marketplace Extension for Visual Studio Code - Formatting support for Python files using the Black formatter. Extension for Visual Studio Code - Formatting support for Python files using the Black formatter.

  "[python]": {
    "editor.defaultFormatter": "ms-python.black-formatter",
    "editor.formatOnSave": true
  }