pip卸载上的PermissionError

Question

我可以安装一个软件包：

pip install brotli

但如果我试图移除它，它就失败了：

PS D:\Desktop> pip uninstall -y brotli
Found existing installation: Brotli 1.0.9
Uninstalling Brotli-1.0.9:
  Successfully uninstalled Brotli-1.0.9
ERROR: Exception:
Traceback (most recent call last):
  File "C:\python\lib\site-packages\pip\_internal\cli\base_command.py", line 167, in exc_logging_wrapper
    status = run_func(*args)
  File "C:\python\lib\site-packages\pip\_internal\commands\uninstall.py", line 102, in run
    uninstall_pathset.commit()
  File "C:\python\lib\site-packages\pip\_internal\req\req_uninstall.py", line 420, in commit
    self._moved_paths.commit()
  File "C:\python\lib\site-packages\pip\_internal\req\req_uninstall.py", line 273, in commit
    save_dir.cleanup()
  File "C:\python\lib\site-packages\pip\_internal\utils\temp_dir.py", line 173, in cleanup
    rmtree(self._path)
  File "C:\python\lib\site-packages\pip\_vendor\tenacity\__init__.py", line 326, in wrapped_f
    return self(f, *args, **kw)
  File "C:\python\lib\site-packages\pip\_vendor\tenacity\__init__.py", line 406, in __call__
    do = self.iter(retry_state=retry_state)
  File "C:\python\lib\site-packages\pip\_vendor\tenacity\__init__.py", line 362, in iter
    raise retry_exc.reraise()
  File "C:\python\lib\site-packages\pip\_vendor\tenacity\__init__.py", line 195, in reraise
    raise self.last_attempt.result()
  File "concurrent\futures\_base.py", line 439, in result
  File "concurrent\futures\_base.py", line 391, in __get_result
  File "C:\python\lib\site-packages\pip\_vendor\tenacity\__init__.py", line 409, in __call__
    result = fn(*args, **kwargs)
  File "C:\python\lib\site-packages\pip\_internal\utils\misc.py", line 124, in rmtree
    shutil.rmtree(dir, ignore_errors=ignore_errors, onerror=rmtree_errorhandler)
  File "shutil.py", line 747, in rmtree
  File "shutil.py", line 617, in _rmtree_unsafe
  File "shutil.py", line 615, in _rmtree_unsafe
PermissionError: [WinError 5] Access is denied: 'C:\\Windows\\Temp\\pip-uninstall-fi5xmcvd\\_brotli.cp310-win_amd64.pyd'

奇怪的是，在失败之后，我可以返回并手动删除文件夹，没有问题：

PS D:\Desktop> python.exe
Python 3.10.4 (tags/v3.10.4:9d38120, Mar 23 2022, 23:13:41) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import shutil
>>> shutil.rmtree('C:\\Windows\\Temp\\pip-uninstall-fi5xmcvd')

我在windows上使用python

Answer 1

问题在Pip代码中，这里1

from pip._vendor.requests.models import Request, Response

一旦该导入发生，brotli文件将由pip本身导入，因此在pip退出之前不能删除它。这是pip问题，而不是brotli或任何其他包的错误。

1. https://github.com/pypa/pip/blob/b2b7aefe/src/pip/_internal/exceptions.py#L13

Answer 2

如果有人想卸载brotli，您可以直接删除<YOUR PYTHON PATH>\lib\site-packages文件夹下的相关文件或文件夹。这在蟒蛇和正常的蟒蛇身上起了作用。