[Python-Dev] Is explicit registration of Iterators needed? (original) (raw)

Serhiy Storchaka storchaka at gmail.com
Fri Oct 7 09:36:55 EDT 2016


A number of builtin iterator classes (but not all builtin iterator classes) are registered with the Iterator ABC in Lib/_collections_abc.py. But isinstance(it, Iterable) check works without explicit registration, because Iterable has subclasshook that checks iterator methods. Is there a need in explicit registrations? Or their can be safely removed?



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