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Proper Way of checking for a collections class

P: n/a
Howdy,

I've been trying to find a good idiom for testing if the input to a
function is one of the collections classes... the best I could do is this:

if hasattr(thing_to_test, '__iter__'):
...

Is this right? Or, is there a better way besides a cascade of type()
tests?

Thanks!

Peace,
Gary

Jul 18 '05 #1
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