A question about Python Classes

Ethan Furman ethan at stoneleaf.us
Thu Apr 21 14:34:49 EDT 2011


chad wrote:
> Let's say I have the following....
> 
> class BaseHandler:
>     def foo(self):
>         print "Hello"
> 
> class HomeHandler(BaseHandler):
>     pass
> 
> 
> Then I do the following...
> 
> test = HomeHandler()
> test.foo()
> 
> How can HomeHandler call foo() when I never created an instance of
> BaseHandler?

You don't need to create an instance of BaseHandler.  You have the
class, Python knows you have the class -- Python will look there if the
subclasses lack an attribute.

~Ethan~




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