[issue10565] isinstance(x, collections.Iterator) can return True, when x isn't iterable

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

> A possible solution could be in 
> collections.Iterator.__subclasshook__ 
> checking for both required methods.

That makes sense.  PEP 234 requires
iterators to support both methods.

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assignee:  -> rhettinger

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