Message 375847 - Python tracker

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Author	MrSupertash
Recipients	Jim.Jewett, Marc Richter, Mariatta, MrSupertash, benjamin.peterson, cheryl.sabella, docs@python, mark, rhettinger
Date	2020-08-24.15:01:42
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1598281302.81.0.368160654486.issue13828@roundup.psfhosted.org>
In-reply-to

Content
I see. I found the documents. That's an issue. That usage is incorrect. It is still valid to upper case "ß" to SS since "ẞ" is fairly new as an official German character, but the other way around is not valid. As such the current sentence in documentation also just does not make sense. >"Since it is already lowercase, lower() would do nothing to 'ß'" Exactly. Why would it? It is nonsensical to change an already lowercase character with a lowercase function. Suggest to update to: "For example, the Unicode standard for German lower case letter 'ß' prescribes full casefolding to 'ss'. Since it is already lowercase, lower() would do nothing to 'ß'; casefold() converts it to 'ss'. In addition to full lowercasing, this function also expands ligatures, for example, 'ﬁ' becomes 'fi'."

I see. I found the documents. That's an issue. That usage is incorrect. It is still valid to upper case "ß" to SS since "ẞ" is fairly new as an official German character, but the other way around is not valid.

As such the current sentence in documentation also just does not make sense.

>"Since it is already lowercase, lower() would do nothing to 'ß'"

Exactly. Why would it? It is nonsensical to change an already lowercase character with a lowercase function.

Suggest to update to:

"For example, the Unicode standard for German lower case letter 'ß' prescribes full casefolding to 'ss'. Since it is already lowercase, lower() would do nothing to 'ß'; casefold() converts it to 'ss'.
In addition to full lowercasing, this function also expands ligatures, for example, 'ﬁ' becomes 'fi'."

History
Date	User	Action	Args
2020-08-24 15:01:42	MrSupertash	set	recipients: + MrSupertash, rhettinger, mark, benjamin.peterson, docs@python, Jim.Jewett, Marc Richter, Mariatta, cheryl.sabella
2020-08-24 15:01:42	MrSupertash	set	messageid: <1598281302.81.0.368160654486.issue13828@roundup.psfhosted.org>
2020-08-24 15:01:42	MrSupertash	link	issue13828 messages
2020-08-24 15:01:42	MrSupertash	create