father class name
Roy Smith
roy at panix.com
Sun Dec 30 23:27:00 EST 2012
In article <mailman.1483.1356927535.29569.python-list at python.org>,
contro opinion <contropinion at gmail.com> wrote:
> here is my haha class
> class haha(object):
> def theprint(self):
> print "i am here"
>
> >>> haha().theprint()
> i am here
> >>> haha(object).theprint()
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: object.__new__() takes no parameters
>
> why haha(object).theprint() get wrong output?
Please, when asking questions, let us know what version of python you're
using. I'm guessing 2.x?
In any case, the problem is that you defined a class whose constructor
takes no arguments:
> class haha(object):
> def theprint(self):
> print "i am here"
You didn't define an __init__() method, so it inherits the one from the
base class, object.
Then here:
> >>> haha(object).theprint()
you try to create an instance of your class and give an argument to the
constructor.
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