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Multiple Inheritance
Objects - Intermediate example from a Well House Consultants training course
More on Objects - Intermediate [link] Source code: mi Module: Y112
"""Demonstration of multiple inheritance in Python
Although we don't encourage you to use multiple inheritance in Python without considering alternatives, it is available within the language. Simply define a list of classes from which each class you are writing is derived, and you'll inherit the methods from each of those classes in turn. Order is important if you have methods of the same name in multiple base classes. """ class pet(object): def __init__(self,weight): self.weight = weight def getweight(self): return self.weight def about(self): return "This is a pet" class insurable(object): def __init__(self,amount,count): self.amount = amount self.count = count def getinsurancecost(self): return self.amount * self.count def about(self): return "This is an insurable" class dog(pet, insurable): def __init__(self,sound,weight,amount): self.sound = sound pet.__init__(self,weight) insurable.__init__(self,amount,12) def getnoise(self): return self.sound def __str__(self): rv = self.getnoise() + " " + \ str(self.getweight()) + " " + \ str(self.getinsurancecost()) return rv if __name__ == "__main__": print __doc__ hound = dog("woof",31,4) print hound.getnoise() print hound.getweight() print hound.getinsurancecost() print hound.about() print hound """ Sample Output .... wizard:oct12 graham$ python mi Demonstration of multiple inheritance in Python Although we don't encourage you to use multiple inheritance in Python without considering alternatives, it is available within the language. Simply define a list of classes from which each class you are writing is derived, and you'll inherit the methods from each of those classes in turn. Order is important if you have methods of the same name in multiple base classes. woof 31 48 This is a pet woof 31 48 wizard:oct12 graham$ """ Learn about this subject
This module and example are covered on the following public courses:
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