[issue32771] merge the underlying data stores of unicodedata and the str type

[Benjamin Peterson]

Benjamin Peterson <benjamin at python.org> added the comment:

The goal is to implement the locale-specific case mappings of https://www.unicode.org/Public/UCD/latest/ucd/SpecialCasing.txt and §3.13 of the Unicode 12 standard in str.lower/upper/casefold. To do this, you need access to certain character properties available in unicodedata but not the builtin database.

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<https://bugs.python.org/issue32771>
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