CODEWITHSUNDEEP
python
Baz
Baz

Reputation: 13135

Accessing inherited methods that have been overridden

class A:
    def start(self):
        pass

class B(A):
    def start(self):
        super(A,self).start()

b = B()
b.start()

Gives this error:

Traceback (most recent call last):
  File "C:/Python32/a.py", line 10, in <module>
    b.start()
  File "C:/Python32/a.py", line 7, in start
    super(A,self).start()
AttributeError: 'super' object has no attribute 'start'

Why?

Upvotes: 1

Views: 69

Answers (1)

C&#233;dric Julien
C&#233;dric Julien

Reputation: 80771

As explained in python doc, super works only for new style class, ie :

Note super() only works for new-style classes.

So you should do something like this :

class A(object):    # inherit from object to be a new style class
    def start(self):
        pass

class B(A):
    def start(self):
        super(B,self).start()   # the first arg of super is the current class

b = B()
b.start()

Upvotes: 7

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