confusion about __getattr__

Quinn Dunkan quinn at upchuck.ugcs.caltech.edu
Thu Jan 17 09:13:07 CET 2002


On Wed, 16 Jan 2002 21:47:37 -0500, Russ Cox <rsc at plan9.bell-labs.com> wrote:
>Could someone explain the error message in the
>following to me?  I apologize if it should be
>obvious, but clearly I have the wrong mental
>picture of what's going on.  
>
>g% python
>Python 2.2+ (#0, Jan 16 2002, 19:28:19) [C] on unknown
>Type "help", "copyright", "credits" or "license" for more information.
>>>> class Test:
>... 	def __getattr__(self, name):
>... 		return '__getattr__ for '+name
>... 	def __init__(self):
>... 		self.foo = 'bar'
>... 	def asdf(self):
>... 		return 'jkl;'
>... 
>>>> t=Test()
>>>> t.foo
>'bar'
>>>> t.sdfsdfdsf
>'__getattr__ for sdfsdfdsf'
>>>> t.asdf()
>'jkl;'
>>>> t.asdf
>Traceback (most recent call last):
>  File "<stdin>", line 1, in ?
>TypeError: 'str' object is not callable
>>>> 
>
>What is the str object in question that isn't callable?
>
>Thanks.
>Russ
>



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