Fix cache problem when going from Python 2 to 3
Fix cache problem when going from Python 2 to 3

SimenB/thefuck,lawrencebenson/thefuck,nvbn/thefuck,nvbn/thefuck,scorphus/thefuck,lawrencebenson/thefuck,Clpsplug/thefuck,mlk/thefuck,PLNech/thefuck,PLNech/thefuck,mcarton/thefuck,scorphus/thefuck,Clpsplug/thefuck,SimenB/thefuck,mcarton/thefuck,mlk/thefuck