安装pyqt5时出现一下问题，求解

在cmd中进行pip install pyqt5操作时出现这个是什么问题啊？在安装pyqt5-tools后只有一个文件夹而没有相应的程序快捷键，我是哪里出错了吗？

C:\Users\lenovo>pip install pyqt5
Traceback (most recent call last):
  File "D:\LenovoQMDownload\python\lib\runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "D:\LenovoQMDownload\python\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "E:\PycharmProjects\Scripts\pip.exe\__main__.py", line 4, in <module>
ModuleNotFoundError: No module named 'pip'

C:\Users\lenovo>

https://blog.csdn.net/haihonga/article/details/100168691/