https://bugzilla.redhat.com/show_bug.cgi?id=1648728
--- Comment #8 from Petr Viktorin pviktori@redhat.com --- I'm not worried about them being compatible *now*.
Consider this scenario: - We replace python-progressbar by progressbar2 in Fedora - The original progressbar adds a new feature, which is not in progressbar2 - python-bitmath upstream starts depending on the new feature
In this case, we couldn't update python-bitmath in Fedora.