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+--- Thread: Calling a base class variable from an inherited class (/thread-36129.html)
Calling a base class variable from an inherited class - CompleteNewb - Jan-19-2022
I have this little program
class Generic_Player: def __init__(self): self.hit = True def Bust(self): print(self.name + " busts.") class Player(Generic_Player): def __init__(self, name): self.name = name def Win(self): print(self.name + " wins!") def Lose(self): print(self.name + " loses.") player1 = Player("player1") player1.Bust() print(player1.hit) which gives me this errorError:Traceback (most recent call last): File "/usr/lib/python3.8/idlelib/run.py", line 559, in runcode exec(code, self.locals) File "/home/fook/Documents/pygame/opencv/test.py", line 43, in <module> print(player1.hit) AttributeError: 'Player' object has no attribute 'hit'RE: Calling a base class variable from an inherited class - bowlofred - Jan-19-2022
You have to have your init call the base class init.
class Player(Generic_Player): def __init__(self, name): super().__init__() self.name = name
RE: Calling a base class variable from an inherited class - deanhystad - Jan-19-2022
A subclass needs to call the __init__() method(s) of its superclass(es) to so they can initialize their instance variables. In this case Player.__init__() does not call GenericPlayer.__init__(). Since GenericPlaier.__init__() was never called this code was never executed:
self.hit = Trueself.hit is never assigned, so there is no "hit" attribute in player1.
To call the superclass __init__() you should use the super().__init__(self) as recommended by bowlofred. Sometimes you will see this done using the superclass name explicitly.
class Player(Generic_Player): def __init__(self, name): GenericPlayer.__init__(self) self.name = name
RE: Calling a base class variable from an inherited class - CompleteNewb - Jan-20-2022
oh okay thanks greatly appreciated