[issue21834] Fix a number of tests in unicodeless build

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka at gmail.com>:


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components: +Unicode
dependencies: +Fix unicodeless build of Python
nosy: +ezio.melotti, haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21834>
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