[code-quality] Checking pytest dependencies for astroid

Hello, I was informed that I should perform some software tests. https://github.com/PyCQA/astroid#test Thus I tried the following command out. [Markus_Elfring@fedora lokal]$ pytest astroid Failed to open '/proc/1/fd/2': Permission denied Traceback (most recent call last): File "/usr/bin/pytest", line 33, in <module> sys.exit(load_entry_point('pytest==6.2.2', 'console_scripts', 'pytest')()) … File "/usr/lib64/python3.9/argparse.py", line 1596, in _handle_conflict_error raise ArgumentError(action, message % conflict_string) argparse.ArgumentError: argument --no-cov: conflicting option string: --no-cov How should the mentioned system dependencies be fixed? Regards, Markus