python's sum() and non-integer values

Question

Is there a simple and quick way to use sum() with non-integer values?

So I can use it like this:

class Foo(object):
    def __init__(self,bar)
               


        

Answer 1

Try using the __int__ method and then mapping each element in your list to the int function to get the values out:

class Foo(object):
    def __init__(self,bar):
        self.bar = bar
    def __int__(self):
        return self.bar

mylist = [Foo(3),Foo(34),Foo(63),200]
result = sum(map(int,mylist))
print(result)