Python Formatting
There is a variety of style checkers (tools that give a feedback) and auto-formatters (tools that are able to fix the formatting violations automatically).
Existing Type Checkers and Auto-Formatters
pycodestyle
Checks Python code against some style conventions in PEP 8.
autopep8
Automatically fixes most of the formatting issues reported by pycodestyle. Since PEP 8 is rather liberal, autopep8/pycodestyle don't modify code too much.
Black
A PEP 8 compliant opinionated auto-formatter with its own style, going further than autopep8/pycodestyle. Style configuration options are deliberately limited to a minimum. Black aims for readability and reducing git diffs. Black is an easy-to-use tool, with sensible and useful defaults. Its style is very elegant.
yapf
Auto-formatter that can be configured to support different styles.
isort
Sorts import statements alphabetically, and separates them into sections, according to their type.