Fix flake8 errors: F401 'sys' imported but unused
Fix flake8 errors: F401 'sys' imported but unused

SimenB/thefuck,SimenB/thefuck,mlk/thefuck,scorphus/thefuck,scorphus/thefuck,nvbn/thefuck,mlk/thefuck,Clpsplug/thefuck,nvbn/thefuck,Clpsplug/thefuck