CODEWITHSUNDEEP
pythonclass
Peter Chao
Peter Chao

Reputation: 443

Python class inheritance

I have this code:

class A(object):
    def __init__(self):
       print " A"

class B(A):
    def __init__(self):
        print "B"
x=B()
print "Done"

the result is: "B" gets printed why does it not print "A", eventhough class B inheritance A

Upvotes: 2

Views: 62

Answers (1)

John1024
John1024

Reputation: 113964

If you want to use A's __init__ while also using B's __init__, then try:

class A(object):
    def __init__(self):
       print " A"

class B(A):
    def __init__(self):
        A.__init__(self)
        print "B"
x=B() 
print "Done"

Or, if you would prefer not to mention the superclass by name:

class A(object):
    def __init__(self):
       print " A"

class B(A):
    def __init__(self):
        super(B, self).__init__()
        print "B"
x=B()
print "Done"

Both of these produce the output:

 A
B
Done

Upvotes: 6

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