Comment 0 for bug 2058917

Because python-pytest-flake8 is broken against recent flake8, upstream dropped it and now invokes flake8 directly as part of their test-suite.

https://github.com/marxin/cvise/commit/b11db4d948cbbc8d54c8156f66def6a65e90ea81

However, in Debian and Ubuntu, we still have a build dependency on python-pytest-flake8, which fails with flake8 from proposed and prevents migration.