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Author vstinner
Recipients Guido.van.Rossum, Mark.Shannon, christian.heimes, corona10, erlendaasland, gvanrossum, pablogsal, serhiy.storchaka, shihai1991, shreyanavigyan, vstinner
Date 2021-04-30.11:35:11
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <[email protected]>
In-reply-to
Content 
Erlend: would you mind to document the new Py_TPFLAGS_IMMUTABLETYPE flag in the C API section of What's New in Python 3.10?
https://docs.python.org/dev/whatsnew/3.10.html#c-api-changes

In "New Features", something like:

* Add a new :c:data:`Py_TPFLAGS_IMMUTABLETYPE` type flag to (...).
  (Contributed by xxx in :issue:`43908`.)

And in the "Porting to Python 3.10", I don't know if we should suggest reviewing metatypes implemented in C which overrides tp_setattro, to take the new flag in account.

Maybe explain that Py_TPFLAGS_IMMUTABLETYPE should now be checked to decide if a type is mutable or not, rather than relying on Py_TPFLAGS_HEAPTYPE.
History
Date User Action Args
2021-04-30 11:35:11vstinnersetrecipients: + vstinner, gvanrossum, christian.heimes, Mark.Shannon, serhiy.storchaka, Guido.van.Rossum, corona10, pablogsal, shihai1991, erlendaasland, shreyanavigyan
2021-04-30 11:35:11vstinnersetmessageid: <[email protected]>
2021-04-30 11:35:11vstinnerlinkissue43908 messages
2021-04-30 11:35:11vstinnercreate