[issue12736] Request for python casemapping functions to use full not simple casemaps per Unicode's recommendation

[Андрей Баксаляр]

Андрей Баксаляр added the comment:

A same problem with the unicode case mapping is still present in the Python 3.4.3. You can repeat the bug with this code, for instance:

'ΰ'.upper().lower() == 'ΰ'

The case swapping is strangelly leads to character replacement:

b'\xce\xb0' → b'\xcf\x85\xcc\x88\xcc\x81'

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nosy: +Андрей Баксаляр
versions: +Python 3.4 -Python 3.3

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<http://bugs.python.org/issue12736>
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