Record of problems caused by PIP upgrade damage

upgrade pip after , Something unusual happened , As a result, no pip Related operations . I found a lot of tutorials on the Internet , All invalid , Later, after repeated exploration , Problem solved .

Try to plan 1：

Python In the update pip Repair of damage caused by failure _ Old dried fish blog -CSDN Blog _python3 Repair pip

The running prompt does not pip modular

PS C:\Users\86176> pip install --upgrade pip
Traceback (most recent call last):
  File "d:\program files\python38\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "d:\program files\python38\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "D:\Program Files\Python38\Scripts\pip.exe\__main__.py", line 4, in <module>
ModuleNotFoundError: No module named 'pip'

terms of settlement
perform python -m ensurepip,python -m pip install --upgrade pip that will do
PS C:\Users\86176> python -m ensurepip
Looking in links: c:\Users\86176\AppData\Local\Temp\tmpjplwmax8
Requirement already satisfied: setuptools in d:\program files\python38\lib\site-packages (49.2.1)
Processing c:\users\86176\appdata\local\temp\tmpjplwmax8\pip-20.2.1-py2.py3-none-any.whl
Installing collected packages: pip
Successfully installed pip-20.2.1
PS C:\Users\86176>
PS C:\Users\86176> 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

test
PS C:\Users\86176> pip list
 

programme 1 Invalid validation

programme 2

Find the previous installation OK Version of , Get into  D:\Python\Lib\site-packages\ route , find pip and pip-22.1.2.dist-info Catalog , Copy it to the corresponding path , Problem solving .