关于pip升级损坏导致的问题记录

升级pip后，出现异常，导致无法进行任何的pip相关的操作。网上找了很多教程，都无效，后来经过反复摸索，问题解决了。

尝试方案1：

Python中更新pip失败导致损坏的修复_老鱼干的博客-CSDN博客_python3修复pip

运行提示没有pip模块

PS C:Users86176> pip install --upgrade pip
Traceback (most recent call last):
  File "d:program filespython38librunpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "d:program filespython38librunpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "D:Program FilesPython38Scriptspip.exe__main__.py", line 4, in <module>
ModuleNotFoundError: No module named 'pip'

解决办法
执行python -m ensurepip,python -m pip install --upgrade pip即可
PS C:Users86176> python -m ensurepip
Looking in links: c:Users86176AppDataLocalTemptmpjplwmax8
Requirement already satisfied: setuptools in d:program filespython38libsite-packages (49.2.1)
Processing c:users86176appdatalocaltemptmpjplwmax8pip-20.2.1-py2.py3-none-any.whl
Installing collected packages: pip
Successfully installed pip-20.2.1
PS C:Users86176>
PS C:Users86176> python -m pip install --upgrade pip
Looking in indexes: https://pypi.douban.com/simple
Collecting pip
  Using cached https://pypi.doubanio.com/packages/7c/02/9ab8b431aca1b46fcc1ac830a5870a28a12ba1abfa681904b1d2da876a86/pip-21.2.1-py3-none-any.whl (1.6 MB)
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 20.2.1
    Uninstalling pip-20.2.1:
      Successfully uninstalled pip-20.2.1
Successfully installed pip-21.2.1

测试
PS C:Users86176> pip list
 

方案1验证无效

方案2

找到之前安装OK的版本，进入 D:PythonLibsite-packages 路径，找到pip和pip-22.1.2.dist-info目录，将其复制到对应的路径下，问题解决。

最后

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