请告诉我如何修复它

Question

升级了pip，现在我无法安装任何python软件包。这是我尝试时遇到的错误 安装熊猫

我以前已经安装过了，等等。**

现在我明白了：

PS C:\Users\Jacque Quinn Trahan> pip install pandas
Traceback (most recent call last):
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\Jacque Quinn Trahan\AppData\Local\Programs\Python\Python36\Scripts\pip.exe\__main__.py", line 5, in <module>
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\site-packages\pip\_internal\cli\main.py", line 9, in <module>
    from pip._internal.cli.autocompletion import autocomplete
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\site-packages\pip\_internal\cli\autocompletion.py", line 10, in <module>
    from pip._internal.cli.main_parser import create_main_parser
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\site-packages\pip\_internal\cli\main_parser.py", line 8, in <module>
    from pip._internal.cli import cmdoptions
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\site-packages\pip\_internal\cli\cmdoptions.py", line 30, in <module>
    from pip._internal.utils.hashes import STRONG_HASHES
  File "c:\users\jacque quinn trahan\appdata\local\programs\python\python36\lib\site-packages\pip\_internal\utils\hashes.py", line 2, in <module>
    from typing import TYPE_CHECKING, BinaryIO, Dict, Iterator, List, NoReturn
ImportError: cannot import name 'NoReturn'
PS C:\Users\Jacque Quinn Trahan>