[New-bugs-announce] [issue37121] 'ა'.upper() should return 'ა'

[Lasha Gogua]

New submission from Lasha Gogua <gogualasha at gmail.com>:

Python's .upper() string method still translates Georgian characters this to "'Ა'" which is not right

Python 3.7.3 (default, May 11 2019, 00:45:16) 
[GCC 8.3.1 20190223 (Red Hat 8.3.1-2)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 'ა'
'ა'
>>> 'ა'.upper()
'Ა'
>>> print('ა'.upper())
Ა
>>> 

and it works in Python 3.6.x and below

Python 3.6.3 (default, Jan  4 2018, 16:40:53) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-16)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 'ა'
'ა'
>>> 'ა'.upper()
'ა'
>>> print('ა'.upper())
ა
>>> 

now i have found the solution but is it correct? What's changed in the new version (Python 3.7.x)?

Python 3.7.3 (default, May 11 2019, 00:45:16) 
[GCC 8.3.1 20190223 (Red Hat 8.3.1-2)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print('ა'.upper())
Ა
>>> print('ა'.encode().upper().decode())
ა
>>> print('ა'.encode('utf-8').upper().decode('utf-8'))
ა
>>>

----------
components: Unicode
messages: 344174
nosy: Lasha Gogua, ezio.melotti, vstinner
priority: normal
severity: normal
status: open
title: 'ა'.upper() should return 'ა'
type: behavior
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37121>
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