Issue 13822: is(upper/lower/title) are not exactly correct

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This issue has been migrated to GitHub: https://github.com/python/cpython/issues/58030

classification

Title:	is(upper/lower/title) are not exactly correct
Type:	enhancement	Stage:	needs patch
Components:	Unicode	Versions:	Python 3.5

process

Dependencies:	Superseder:
Status:	open	Resolution:
Assigned To:	Nosy List:	benjamin.peterson, ezio.melotti, giampaolo.rodola, xtreak
Priority:	normal	Keywords:

Created on 2012年01月19日 04:22 by benjamin.peterson, last changed 2022年04月11日 14:57 by admin.

Messages (1)
msg151606 - (view)	Author: Benjamin Peterson (benjamin.peterson) * (Python committer)	Date: 2012年01月19日 04:22
The isupper() and islower() methods currently use the Lowercase and Uppercase derived properties. Technically, they should use the Changes_When_(Lowercased/Uppercased/Titlecased) and Changes_When_Casemapped derived properties to compute their results.

Messages (1)

msg151606 - (view)

Author: Benjamin Peterson (benjamin.peterson) * (Python committer)

Date: 2012年01月19日 04:22

The isupper() and islower() methods currently use the Lowercase and Uppercase derived properties. Technically, they should use the Changes_When_(Lowercased/Uppercased/Titlecased) and Changes_When_Casemapped derived properties to compute their results.

History
Date	User	Action	Args
2022年04月11日 14:57:25	admin	set	github: 58030
2018年09月22日 16:28:32	xtreak	set	nosy: + xtreak
2014年08月03日 16:37:33	BreamoreBoy	set	versions: + Python 3.5, - Python 3.4
2013年08月17日 14:58:25	ezio.melotti	set	versions: + Python 3.4, - Python 3.3
2012年01月20日 17:02:19	giampaolo.rodola	set	nosy: + giampaolo.rodola
2012年01月20日 15:02:42	ezio.melotti	set	type: enhancement stage: needs patch
2012年01月19日 04:22:54	benjamin.peterson	create

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