Linting: flake8

• Style Guide Enforcement
• Check code syntax
• Provide instructions on how to clean it
• Prevent things like syntax errors, typos, bad formatting, incorrect styling, etc
• If you working in the team, it saves time for people who are reviewing your code (no need to distrust for typos and formatting issues). Read more

1. pip install flake8

2. Install VSCode plugin: cornflakes-linter

3. Settings.json:

   {
       "cornflakes.linter.executablePath": "path/to/venvs/myvenv/bin/flake8",
       "cornflakes.linter.run": "onType"
   }

Import formatting: isort

• Sort imports alphabetically
• Automatically separated into sections and by type.

1. pip install isort

2. isort mypythonfile.py mypythonfile2.py
   
   isort .
   
   isort **/*.py
   
   isort mypythonfile.py --diff
   
   #  only applying changes if they don't introduce syntax errors
   isort --atomic .

Code formatter: black

• Can be forced to check with GitHub Actions on push or pull requests

1. pip install black

2. • VSCode: Right click + Format Document

   • black my_file.py
     black .

     Sometimes needs to refresh project in VSCode
3. isort compatibility
   pyproject.toml:

       [tool.isort]
       profile = "black"
       multi_line_output = 3

Static type checker: mypy

1. pip install mypy

2. mypy .