Module inspect Bug

Tomas Zulberti tzulberti at
Mon Oct 5 16:59:01 CEST 2009

Hi. I have a class that extends collections.MutableMapping. I am
checking if it is abstract, using the module inspect. But isabstract
returns a number different from zero insted of True or False. The
problem with that is that sometimes it returns False when the class
isn't an abstract.

>>> inspect.isabstract(collections.MutableMapping)
>>> inspect.isabstract(os)

Its true that the condition nevertheless will be True on the if, but
the return value I think that should be boolean.

Tomas Zulberti

pd: Sorry for my bad English...

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