[issue20150] API change in string formatting with :s option should be documented in What's New.

Cheryl Sabella added the comment: I believe this has been added to the 3.4 What's New already: object.__format__() no longer accepts non-empty format strings, it now raises a TypeError instead. Using a non-empty string has been deprecated since Python 3.2. This change has

[issue20150] API change in string formatting with :s option should be documented in What's New.

Eric V. Smith added the comment: Oops, I missed the should be documented part of your message. That's true, and I'll leave this open. But I'll change it to a doc request and assign it accordingly. -- assignee: eric.smith - docs@python components: +Documentation -Interpreter Core nosy: