预提交 isort 没有名为 'setuptools' 的模块

Question

我正在尝试运行预提交挂钩，但是当它们遇到 isort 挂钩时失败，抛出以下错误：

  File "/home/el/.cache/pre-commit/repoffrjhcx0/py_env-python3/lib/python3.10/site-packages/_distutils_hack/__init__.py", line 92, in create_module
    return importlib.import_module('setuptools._distutils')
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named 'setuptools'

我正在使用 docker，我已经检查过我的计算机和 docker 上都安装了 setuptools。我不明白为什么会出现此错误。我认为 isort 设置了它自己的环境，但是为什么不安装它，因为它在它们的配置文件中定义 pyproject.toml.

以下是我的预提交和 isort 配置：

.pre-commit-config.yaml

repos:
- repo: https://github.com/pycqa/isort
  rev: 5.8.0
  hooks:
    - id: isort
      args: ["--multi-line=5", "--line-length=120", "--use-parentheses", "--filter-files"]
      exclude: "migrations"
      stages: [commit]

tox.ini

[isort]
line_length=120
skip_glob=*migrations*
multi_line_output=5
sections=FUTURE,STDLIB,THIRDPARTY,FIRSTPARTY,LOCALFOLDER
use_parentheses=true
include_trailing_comma=true
lines_between_types=1
lines_after_imports=2
[testenv:isort]
deps =
    isort
commands =
    isort . --check-only --diff

Python 系统版本：3.10.1

Python docker 上的版本：3.8

感谢任何帮助！

Answer 1

这是 a bug in setuptools which has already been fixed (see also the pinned issue on isort)

您可以通过设置以下环境变量来解决此错误：SETUPTOOLS_USE_DISTUTILS=stdlib

setuptools 的版本来自您正在使用的 virtualenv 的版本，因此您可能需要升级以获得正确的版本

这里有更长的 summary of what went wrong with setuptools:

here's the relevant things to follow up on:

https://github.com/pypa/setuptools/issues/2353

https://github.com/pypa/pip/issues/6264

https://github.com/pypa/setuptools/issues/2980

why we're suddenly seeing this:

the latest virtualenv release upgraded setuptools to 60.1.0 (despite what the changelog says it was upgraded to 60.1.0 here)

setuptools 60.* changes the default to using the setuptools-embedded distutils rather than the stdlib distutils

setuptools does this by way of a .pth file which redirects imports of distutils to setuptools._distutils

during pip's isolated builds (triggered by pyproject.toml, for example to install isort via poetry) pip attempts to clear the current sys.path of the enclosing environment and isolates to the pyproject.toml-installed build dependencies, but it's a bit too late as the .pth files from the enclosing environment are applied. so in this environment setuptools is not installed, but its import hooks are

免责声明：我创建了预提交

预提交 isort 没有名为 'setuptools' 的模块

pre-commit isort no module named 'setuptools'

python

pre-commit-hook

pre-commit

pre-commit.com

isort