[issue31900] localeconv() should decode numeric fields from LC_NUMERIC encoding, not from LC_CTYPE encoding

[STINNER Victor]

STINNER Victor <victor.stinner at gmail.com> added the comment:

I completed my change. It now fixes locale.localeconv(), str.format() for int, float, complex and decimal.Decimal:

vstinner at apu$ ./python lc_numeric.py 
LC_CTYPE: ('fr_FR', 'ISO8859-1')
LC_NUMERIC: ('es_MX', 'UTF-8')
decimal_point: '.'
thousands_sep: '\u2009'
grouping: [3, 3, 0]
int.__format__: '1\u2009234'
float.__format__: '1\u2009234'
complex.__format__: '1\u2009234+0j'
Decimal.__format__: '1\u2009234'

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Added file: https://bugs.python.org/file47377/lc_numeric.py

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<https://bugs.python.org/issue31900>
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