Revert "test on py3.6-dev"
Revert "test on py3.6-dev"

This reverts commit d1c668125f66e4af183b2ce8a1ed6f181ac084d7.

dit/dit,dit/dit,Autoplectic/dit,Autoplectic/dit,dit/dit,dit/dit,Autoplectic/dit,Autoplectic/dit,Autoplectic/dit,dit/dit