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 <module>
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