[New-bugs-announce] [issue34002] minor efficiency and clarity improvements in email package

[Michael Selik]

New submission from Michael Selik <mike at selik.org>:

The primary motivation for these improvements was avoiding a while/pop pattern for looping. A for-loop is a big improvement over copying a list, then repeatedly popping the 0th element.

A lesser improvement is the use of ``a.intersection(b)`` instead of ``c = set(b); len(c) > len(c - a)``. The check for intersection is more clear, and it avoids an unnecessary set construction.

https://github.com/python/cpython/pull/7999/

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messages: 320730
nosy: selik
priority: normal
severity: normal
status: open
title: minor efficiency and clarity improvements in email package

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34002>
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