Python 格式化

Black (Opinionated Formatter)

`pip install black`	Install Black
`black myfile.py`	Format file
`black --check .`	Check without modifying
`black --diff myfile.py`	Show diff without applying
`black --line-length 100 .`	Custom line length

isort (Import Sorting)

`pip install isort`	Install isort
`isort myfile.py`	Sort imports
`isort --check-only .`	Check only
`isort --profile black .`	Black-compatible profile

flake8 (Linting)

`pip install flake8`	Install flake8
`flake8 myfile.py`	Lint file
`flake8 --max-line-length=100`	Set max line length
`# noqa: E501`	Suppress specific rule on line