解决pip命令执行失败的问题-优快云博客

当pip install命令遇到问题时，可以检查pip的环境变量设置，确保Scripts文件夹路径正确。如果pip -V仍然报错，可以尝试使用python -m ensurepip命令或用python -m pip install --upgrade pip更新pip版本。若需要，也可以通过python -m pip install pip==19.0.3进行pip降级。

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pip install 命令执行时

Traceback (most recent call last):
  File "d:\program files\devtools\python36\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "d:\program files\devtools\python36\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "D:\Program Files\devTools\Python36\Scripts\pip.exe\__main__.py", line 5, in <module>
ModuleNotFoundError: No module named 'pip'

pip和pip3的区别

pip --version     # Python2.x 版本命令
pip3 --version    # Python3.x 版本命令

解决方案：

1）首先检查pip命令的环境变量是否配置（Scripts文件夹路径下可检查是否存在pip.exe）

2）环境配置无误，pip -V仍报错的话，尝试使用 python -m ensurepip 命令

*****>python -m ensurepip
Looking in links: C:\Users\liuhuandi\AppData\Local\Temp\tmpusox91sj
Requirement already satisfied: setuptools in d:\program files\devtools\python36\lib\site-packages (40.8.0)
Collecting pip
Installing collected packages: pip
Successfully installed pip-18.1

3）还不行，可以尝试 python -m pip install --upgrade pip 命令，更新pip版本

4）pip -V命令

*****>pip -V
pip 18.1 from d:\program files\devtools\python36\lib\site-packages\pip (python 3.6)

5）pip 降级 python -m pip install pip==19.0.3

*****>python -m pip install pip==19.0.3
Collecting pip==19.0.3
  Downloading pip-19.0.3-py2.py3-none-any.whl (1.4 MB)
     |████████████████████████████████| 1.4 MB 656 kB/s
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 20.1.1
    Uninstalling pip-20.1.1:
      Successfully uninstalled pip-20.1.1
Successfully installed pip-19.0.3