They bring nothing of value (we never use import * anyway) and introduce a maintenance burden. The __all__ that I left might not be very useful either but at least they are not a pain to maintain; they are also used by pyflakes in some cases.
Remove useless trailing \ Remove trailing spaces Add missing empty lines autopep8 -ir -j2 --select=E301,E302,E502,W291,W293,W391 . Diff quickly checked.