使用 python -m pip install --upgrade pip 的 pip 升级问题 [英] pip upgrade issue using python -m pip install --upgrade pip

问题描述

最近，我一直在尝试使用以下命令升级我的 pip:

Recently, I've been trying to upgrade my pip using the following command:

python -m pip install --upgrade pip

流程如下:

Downloading pip-21.0.1-py3-none-any.whl (1.5 MB)
     |████████████████████████████████| 1.5 MB 1.7 MB/s
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 20.3.3
    Uninstalling pip-20.3.3:
      Successfully uninstalled pip-20.3.3
  Rolling back uninstall of pip

然后一堆Moving to 行开始出现，然后出现错误:

Then a bunch of Moving to lines start to appear, then comes the error:

ValueError: Unable to find resource t64.exe in package pip._vendor.distlib

我应该做什么???

推荐答案

仅供参考，我如上卸载了 pip，然后运行了版本检查以进行验证:

FYI, I uninstalled pip as above and then ran a version check to verify:

python -m pip --version

得到

pip 21.0.1 from C:\Program Files\Python39\lib\site-packages\pip (python 3.9)

觉得奇怪，我又重新运行了升级版:

Finding that odd, I reran the upgraded again:

python -m pip install --upgrade pip

得到

Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: pip in c:\program files\python39\lib\site-packages (21.0.1)

我意识到这是从用户帐户执行的.因此，我以管理员身份重新进行了升级.这次没有违约......"线.

I realize that this was being performed from user account. So, I re-did the upgrade as an Administrator. This time there was no "Defaulting ..." line.

似乎如果您在安装/升级 pip 时不小心，您可能会无意中将其可用性从全局更改为特定于用户，从而为将来的升级中断删除过程.

It seems that if you're not careful when installing/upgrading pip you can inadvertently change it's availability from global to user-specific, borking the removal process for future upgrades.

TL;DR 作为管理员，升级到 pip 21.0.1 后，卸载 pip (python -m pip uninstall) 以修复ValueError".

TL;DR As Administrator, after upgrading to pip 21.0.1, uninstall pip (python -m pip uninstall) to fix the "ValueError".

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