[Solved] AttributeError: ‘NoneType’ object has no attribute ‘current’
At the moment you call: print self,self.parent.current the LoginScreen is not instantiated yet, so you are calling for and object that does not exist. The workaround is to delay the call by 1 frame, that can be done using Clock class: Clock.schedule_once(self._myprintfunction, 1/60) and latter in your code but in the same class: def _myprintfunction(self, … Read more