[issue5127] UnicodeEncodeError - I can't even see license

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc <amauryfa at gmail.com> added the comment:

> No, but changing the APIs from 16-bit integers to 32-bit integers
> does require a recompile of all code using it.

Is it acceptable between 3.1 and 3.2 for example? ISTM that other
changes already require recompilation of extension modules.

> Also, the Unicode type database itself uses Py_UNICODE, so
> case mapping would fail for non-BMP code points.

Where, please? in unicodedata.c, getuchar and _getrecord_ex use Py_UCS4.

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