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Install any library via pip get an error cannot import name 'SCHEME_KEYS' from 'pip. - Printable Version

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Install any library via pip get an error cannot import name 'SCHEME_KEYS' from 'pip. - Anldra12 - Jan-04-2022

Installing any library using pip install gmpy2 return me an error 
Error:
Traceback (most recent call last):
  File "d:\python3.8.0\python\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "d:\python3.8.0\python\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "D:\Python3.8.0\Python\Scripts\pip.exe\__main__.py", line 4, in <module>
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\cli\main.py", line 10, in <module>
    from pip._internal.cli.autocompletion import autocomplete
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\cli\autocompletion.py", line 9, in <module>
    from pip._internal.cli.main_parser import create_main_parser
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\cli\main_parser.py", line 7, in <module>
    from pip._internal.cli import cmdoptions
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\cli\cmdoptions.py", line 24, in <module>
    from pip._internal.cli.progress_bars import BAR_TYPES
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\cli\progress_bars.py", line 12, in <module>
    from pip._internal.utils.logging import get_indentation
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\utils\logging.py", line 18, in <module>
    from pip._internal.utils.misc import ensure_dir
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\utils\misc.py", line 31, in <module>
    from pip._internal.locations import (
  File "d:\python3.8.0\python\lib\site-packages\pip\_internal\locations\__init__.py", line 9, in <module>
    from pip._internal.models.scheme import SCHEME_KEYS, Scheme
ImportError: cannot import name 'SCHEME_KEYS' from 'pip._internal.models.scheme' (d:\python3.8.0\python\lib\site-packages\pip\_internal\models\scheme.py)


RE: Install any library via pip get an error cannot import name 'SCHEME_KEYS' from 'pip. - snippsat - Jan-04-2022

There something wrong with pip,try upgrade first.
python -m pip install --upgrade pip
If that dos not work try to force reinstall of pip.
python -m pip install --upgrade --force-reinstall pip


RE: Install any library via pip get an error cannot import name 'SCHEME_KEYS' from 'pip. - Anldra12 - Jan-04-2022

@ snippsat Thanks solved It is systematic however I understand the main problem.