using super

[sashan]

I'm trying to use super but keep getting the following error

E:\Code\Python\ Nexus\Player>py thon ./super_test.py
Traceback (most recent call last):
File "./super_test.py", line 14, in ?
main()
File "./super_test.py", line 11, in main
b = B()
File "./super_test.py", line 7, in __init__
super(B, self).__init()
TypeError: super() argument 1 must be type, not classobj

Here's the code:
class A:
def __init__(self):
print 'A'

class B(A):
def __init__(self):
super(B, self).__init()
print 'B'

def main():
b = B()

if __name__ == '__main__':
main()

[Matt Goodall]

Re: using super

sashan wrote:
[color=blue]
> I'm trying to use super but keep getting the following error
>
> E:\Code\Python\ Nexus\Player>py thon ./super_test.py
> Traceback (most recent call last):
> File "./super_test.py", line 14, in ?
> main()
> File "./super_test.py", line 11, in main
> b = B()
> File "./super_test.py", line 7, in __init__
> super(B, self).__init()
> TypeError: super() argument 1 must be type, not classobj
>
> Here's the code:
> class A:
> def __init__(self):
> print 'A'
> class B(A):
> def __init__(self):
> super(B, self).__init()
> print 'B'
> def main():
> b = B()
> if __name__ == '__main__':
> main()
>[/color]

super() only works for "new style" classes, that is classes that extend
Python's object type. class A(object) should solve your problem.

Cheers, Matt

--
Matt Goodall, Pollenation Internet Ltd
w: http://www.pollenation.net
e: matt@pollenatio n.net

[Paul McGuire]

Re: using super

> Here's the code:

You will also need to correct:
super(B, self).__init()
to read
super(B, self).__init__( )

[color=blue]
> class A:
> def __init__(self):
> print 'A'
>
> class B(A):
> def __init__(self):
> super(B, self).__init() <<<====
> print 'B'
>
> def main():
> b = B()
>
> if __name__ == '__main__':
> main()
>[/color]