flake8的使用

安装

pip install flake8

conda install flake8

依赖的库

$ pip show flake8 | grep Requires
Requires: mccabe, pycodestyle, pyflakes

• mccabe: 计算单元代码的McCabe指数
• pycodestyle: 代码风格检查
• pyflakes: 代码格式检查

配置

# FastAPI的设置: https://github.com/tiangolo/fastapi/blob/master/.flake8
[flake8]
max-line-length = 88
select = C,E,F,W,B,B9
ignore = E203, E501, W503
exclude = __init__.py

🔗选项一览

• max-line-length: 最大行长度, 默认79
• select: 选择检查的类型, 默认E,F,W,C90
• 🔗官网的说明
• ignore: 忽略的检查, 默认E121,E123,E126,E226,E24,E704,W503,W504
• 🔗pycodestyle的错误码
• 🔗flake8的错误码
• exclude: 排除的文件, 默认.svn,CVS,.bzr,.hg,.git,__pycache__,.tox,.nox,.eggs,*.egg

📢注意: 命令行参数的优先级大于配置文件

VSCode中启用.flake8

```json { "python.linting.enabled": true, "python.linting.flake8Enabled": true, "python.linting.flake8Args": [ "--config=.flake8" ], }