[3.5] bpo-30197: Enhance functions swap_attr() and swap_item() in test.support. (#1341)#1346

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serhiy-storchaka merged 2 commits intopython:3.5from

serhiy-storchaka:backport-d1a1def-3.5

Apr 28, 2017

Commits on Apr 28, 2017

[3.5] bpo-30197: Enhance functions swap_attr() and swap_item() in test.support. (#1341)
serhiy-storchaka
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[3.5] bpo-30197: Enhance functions swap_attr() and swap_item() in test.support. (GH-1341)
serhiy-storchaka
committed