Revert "don't attempt black checking as it binds us to ever changing black versions"
Revert "don't attempt black checking as it binds us to ever changing black versions"

This reverts commit 0c9d067e847377657b2208012df020b0b8650b5f.

gitpython-developers/GitPython,gitpython-developers/gitpython,gitpython-developers/gitpython,gitpython-developers/GitPython