请问： Python中是否有方式可以像前端的TSLint一样进行代码的自动风格格式检查？

Question

请问：
Python中是否有方式可以像前端的TSLint一样进行代码的自动风格格式检查？

我知道一个库：autopep8

我只有看到单个文件的检验：

autopep8 --in-place test_search.py

但是如何做到类似Python项目的配置文件中配置，然后自动检查呢？

Answer 1

现在推荐用 ruff，更快更方便，全局安装一下它就行。

pip install ruff

vscode开发python三件套：

• mypy
• pylance
• ruff

前两个做参数和变量的静态类型检查，ruff用于代码格式化等等各种规则配置。

然后比如我用 poetry 以及 pyproject.yaml 来作为我的python配置文件的话，内容如下：

[tool.poetry]
...

[tool.poetry.dependencies]
...

[tool.poetry.group.dev.dependencies]
pytest = "^8.2.2"
pytest-asyncio = "^0.23.8"

[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"

######################### 以下配置参考 #########################
[tool.ruff]
line-length = 120
ignore = ["E501", "E722"]

# output to requirements.txt
# poetry export -f requirements.txt --without-hashes --without-urls -o requirements.dev.txt

[tool.mypy]
ignore_missing_imports = true
disable_error_code = ["import-untyped", "arg-type", "attr-defined", "type-arg", "valid-type", "union-attr", "call-arg", "annotation-unchecked"]

[[tool.mypy.overrides]]
module = "*"
disable_error_code = ["import-untyped", "arg-type", "attr-defined", "type-arg", "valid-type", "union-attr", "call-arg", "annotation-unchecked"]
ignore_missing_imports = true

# https://github.com/microsoft/pyright/blob/main/docs/configuration.md
[tool.pyright]
include = ["src"]
exclude = ["**/__pycache__", ".venv"]
reportMissingImports = true

...

然后vscode的settings配置：

{
    "[python]": {
        "editor.formatOnType": true,
        "editor.defaultFormatter": "charliermarsh.ruff",
        "editor.codeActionsOnSave": {
            "source.organizeImports.ruff": "explicit",
            "source.fixAll.ruff": "explicit"
        },
        "editor.formatOnSave": true
    },
    "editor.codeActionsOnSave": {

        "source.organizeImports.ruff": "explicit",
        "source.fixAll.ruff": "explicit"
    },
}

之后，每一个python文件在你保存的时候 ruff 会自动格式化，mypy 类型检查，很方便。