[issue18184] Add range check for %c in PyUnicode_FromFormat

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

I agree, a ValueError may be better than OverflowError, but all other formattings raise OverflowError, and we should support them consistent.

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resolution:  -> fixed
stage: patch review -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18184>
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