isinstance method

Peter Hansen peter at
Tue Mar 16 21:41:02 CET 2004

niurka.perez at wrote:

> I need to find out dynamically if an object is instance of a Class but I don't
> know how to use this isinstance buit-in function. I have the object and the name
> of the class, what should I do?

Many classes can have the same name, so you additionally must know which 
module (i.e. have a reference to the module) in which the class was defined.

Then, knowing that a module responds as a dict object, you can retrieve 
an actual reference to the class and carry on as Erik Max Francis showed 


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