- Fix compatibility with Python 3.15.0a5 (rhbz#2424583) - Comply with PEP540 UTF-8 Mode - Defer to stdlib for argparse coloring in Python 3.14 and later - Add feature to specify a default error code
Fix integration tests with less v633 and make them reliable again.
This fixes an issue with reliability of the unit tests on Python 3.10. Resolves: rhbz#2091105