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pythonpolymorphisminstance

Python: asking if two objects are the same class

I have a class Animal and other animals inherit from it (e.q. Sheep, Wolf).
I want to check if two objects are the same class and if so, it should create new object of the same class and if they are not, they are fighting.

if x and y same object:
    #create new object
else:
    #fight

Is there a better method than isinstance?
Because, there will be more animals than just 2 and I think it wouldn't be efficient to do it like this:

if isinstance(x, Wolf)
    # ...
Solution

  • you can simply use

    if type(x) == type(y):
    fight()

    Python has a type system that allows you to do exactly that.

    EDIT: as Martijn has pointed out, since Types only exist once in every runtime, you can use is instead of ==:

    if type(x) is type(y):
    fight()