python安装在非系统盘的问题

下载 requests库报错 pip install requests

1. 错误描述
   Traceback (most recent call last):
   File “d:\programfiles\python3.9\lib\runpy.py”, line 197, in _run_module_as_main
   return _run_code(code, main_globals, None,
   File “d:\programfiles\python3.9\lib\runpy.py”, line 87, in run_code
   exec(code, run_globals)
   File "D:\ProgramFiles\Python3.9\Scripts\pip.exe_main.py", line 4, in
   ModuleNotFoundError: No module named ‘pip’

2. 解决方案
   运行下面两行命令：

python -m ensurepip
python -m pip install --upgrade pip

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原文链接：https://blog.youkuaiyun.com/niuba123456/article/details/113535722