Python: Auto Format Code

the 2 best python auto formatters are yapf and black

• yapf https://github.com/google/yapf
• black https://github.com/psf/black

• yapf is written in python, algorithm based on clang-format. code owned by google and written by Bill Wendling (aka gwelymernans, morbo@google.com) [https://github.com/gwelymernans].
• black is written in python by Łukasz Langa [https://lukasz.langa.pl/], a Python Core Dev.

• yapf support various styles. pep8, google, facebook, with many tweakings.
• black is just one style.

• yapf is 522k
• black is 716k

• yapf repo is 937k
• black repo is 5,431k

• black does not support Python 2 since version 22.0 (released 2022 Jan).

install:

pip install yapf
pip install black

yapf usage:

# print help
yapf -h

# print diff
yapf -d filename.py

# change file in-place
yapf -i filename.py

# pep8 style
yapf -i filename.py

# google style
yapf -i --style google filename.py

# print style help
yapf --style-help

black usage:

# print help
black -h

# print diff
black -diff filename.py

# change file in-place
black filename.py

# take input from stdin
black - -q