flake8 1 2 3 4 5 6 7 pip install flake8 flake8 --max-line-length=120 project_0 # 忽略掉 E501,E302,E122,E225,E303,W291,E221,E231 flake8 --max-line-length=120 --ignore=E501,E302,E122,E225,E303,W291,E221,E231 project_0 # 只检查 F821 undefined name flake8 --select=F821 /path/to/project_0