[issue12600] Support parameterized TestCases in unittest

[Ezio Melotti]

Changes by Ezio Melotti <ezio.melotti at gmail.com>:


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nosy: +Yaroslav.Halchenko, brian.curtin, eric.araujo, ericsnow, exarkun, ezio.melotti, fperez, michael.foord, nchauvat, ncoghlan, pitrou, r.david.murray
versions: +Python 3.3 -Python 2.7, Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12600>
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