python - I have this ERROR: Cannot uninstall 'pyparsing' I try to install pytest in Mac os

Question

I try to install pytest in terminal Mac Os, so I follow the instruccions of this website Exercism * https://exercism.io/tracks/python/tests

The download starts well:

MacBook-Pro-de-AppleSSD:~ root# pip3 install pytest pytest-cache
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.

Collecting pytest
  Downloading pytest-4.6.11-py2.py3-none-any.whl (231 kB)
     |████████████████████████████████| 231 kB 711 kB/s 
Collecting pytest-cache
  Downloading pytest-cache-1.0.tar.gz (16 kB)
Requirement already satisfied: pathlib2>=2.2.0; python_version < "3.6" in /Library/Python/2.7/site-packages (from pytest) (2.3.5)
Requirement already satisfied: py>=1.5.0 in /Library/

I try to install PYTEST in terminal Mac Os, everything goes well but in this part stop the download.

It is in this part where I get an error from the download:

Attempting uninstall: pyparsing

    Found existing installation: pyparsing 2.0.1

ERROR: Cannot uninstall 'pyparsing'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

How can I solve this problem?

Answer 1

等待大神答复