[issue27438] Refactor simple iterators implementation

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Thank you for your detailed explanation Raymond.

In any case, the work on this patch helped to find a bug in bytearray iterator (issue27443).

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resolution:  -> rejected
stage: patch review -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue27438>
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