解决 [Errno 2] No such file or directory: ‘c:\\users\\user\\appdata\\roaming\\python\\python37\……等问题

问题汇总：

• Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'c:\\users\\user\\appdata\\roaming\\python\\python37\\site-packages\\pip-19.0.1.dist-info\\METADATA'
• Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'c:\\users\\user\\appdata\\roaming\\python\\python37\\site-packages\\pip-19.0.1.dist-info\\RECORD'
• Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: 'C:\\Program Files\\Python37\\Lib\\site-packages\\pip\\__init__.py'
  Consider using the `--user` option or check the permissions.
• You are using pip version 19.0.1, however version 20.3.3 is available.
  You should consider upgrading via the 'python -m pip install --upgrade pip' command.
• Traceback (most recent call last):
    File "C:\Program Files\Python37\lib\runpy.py", line 193, in _run_module_as_main
      "__main__", mod_spec)
    File "C:\Program Files\Python37\lib\runpy.py", line 85, in _run_code
      exec(code, run_globals)
    File "C:\Users\user\AppData\Roaming\Python\Python37\site-packages\pip\__main__.py", line 16, in
      from pip._internal import main as _main  # isort:skip # noqa
  ModuleNotFoundError: No module named 'pip._internal'

 

 

当然远不止这些，类似的还很多。

细看报错，是因为没有找到对应的文件，可以自己去文件夹下面找一下！

比如在文件夹下面：

 

没有METADATA等文件，这些文件在 C:\Users\user\AppData\Roaming\Python\Python37\site-packages\pip-19.0.1.dist-info\pip-19.0.1.dist-info 里面！将其复制到 C:\Users\user\AppData\Roaming\Python\Python37\site-packages\pip-19.0.1.dist-info 文件夹下面可以消除其报错！

但是治标不治本，还是没有办法update！

彻底解决办法：

强制重新安装！

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py --force-reinstall

舒服了，折腾two hours啥也没学到，但是舒服了一下，也算没白费吧。。。