CODEWITHSUNDEEP
pythonclass
user225312
user225312

Reputation: 131587

Calling base class method in Python

I have two classes A and B and A is base class of B.

I read that all methods in Python are virtual.

So how do I call a method of the base because when I try to call it, the method of the derived class is called as expected?

>>> class A(object):
    def print_it(self):
        print 'A'


>>> class B(A):
    def print_it(self):
        print 'B'


>>> x = B()
>>> x.print_it()
B
>>> x.A ???

Upvotes: 59

Views: 82372

Answers (3)

bonkey
bonkey

Reputation: 31

Simple answer:

super().print_it()

Upvotes: 1

primroot
primroot

Reputation: 1686

Two ways:


>>> A.print_it(x)
'A'
>>> super(B, x).print_it()
'A'

Upvotes: 40

user225312
user225312

Reputation: 131587

Using super:

>>> class A(object):
...     def print_it(self):
...             print 'A'
... 
>>> class B(A):
...     def print_it(self):
...             print 'B'
... 
>>> x = B()
>>> x.print_it()                # calls derived class method as expected
B
>>> super(B, x).print_it()      # calls base class method
A

Upvotes: 62

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