[issue19705] Update test.test_namespace_pkgs to PEP 451

[Brett Cannon]

Changes by Brett Cannon <brett at python.org>:


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components: Tests
nosy: brett.cannon, eric.snow, ncoghlan
priority: normal
severity: normal
stage: needs patch
status: open
title: Update test.test_namespace_pkgs to PEP 451
versions: Python 3.4

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<http://bugs.python.org/issue19705>
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