[issue12730] Python's casemapping functions are untrustworthy due to narrow/wide build issues

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


Added file: http://bugs.python.org/file22894/casemaps.py

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12730>
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