human
I am working on the file "PyConFr2017.ipynb".
The first task is:
Test de robustesse n°0
Can you write Python program for it?

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What is a the Python program you requested?
assistant
#Here is the Python program you requested.

class Infinity(object):
    def __getitem__(self, _):
        return 0
    
infnty = Infinity()
check_iterable(infnty)