How do I call a method on a specific base class in Python?

Question

How do I call a method on a specific base class? I know that I can use super(C, self) in the below example to get automatic method resolution - but I want to be able to specify which base class's method I am calling?

class A(object):
    def test(self):
        print 'A'

class B(object):
    def test(self):
        print 'B'

class C(A,B):
    def test(self):
        print 'C'

I'm assuming that you want to know how to do this for the C class? Do you want to differentiate at runtime, on an instance? Can you show how you want to use this functionality? — SethMMorton
– SethMMorton, Commented May 23, 2014 at 0:55
@SethMMorton: Well the others don't have any base classes to call — Casebash
– Casebash, Commented May 23, 2014 at 0:56
Yes, I realize that. I was prompting for more details on what you want. — SethMMorton
– SethMMorton, Commented May 23, 2014 at 0:56

James Mills · Accepted Answer · 2014-05-23 00:56:38Z

7

Just name the "base class".

If you wanted to call say B.test from your C class:

class C(A,B):
    def test(self):
        B.test(self)

Example:

class A(object):

    def test(self):
        print 'A'


class B(object):

    def test(self):
        print 'B'


class C(A, B):

    def test(self):
        B.test(self)


c = C()
c.test()

Output:

$ python -i foo.py
B
>>>

See: Python Classes (Tutorial)

answered May 23, 2014 at 0:56

James Mills

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