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Pythonのコードを何も考えずにフォーマットする方法

ライブラリに任せる。

使うライブラリ

isort

importのソートをしてくれる
$ isort -rc -sl .で、importをすべて1行のimportに変換してくれる。
$ isort -rc -m 3 .で、importをすべて複数行のimportに変換してくれる。

autoflake

pyflakesによって報告された未使用のインポートと未使用の変数を削除する。
複数行importの未使用importは削除してくれないので、前後にisortで整える。

black

妥協のないPythonコードフォーマッター

使い方

$ pipenv install isort autoflake black
Makefile
fix:
    isort -rc -sl .
    autoflake -ri --remove-all-unused-imports --ignore-init-module-imports --remove-unused-variables .
    black .
    isort -rc -m 3 .
$ pipenv run make fix
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