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Title: Enum docs claim replacing __new__ is not possible
Type: enhancement Stage: resolved
Components: Documentation Versions: Python 3.4, Python 3.5
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: docs@python Nosy List: docs@python, ethan.furman, ezio.melotti, python-dev
Priority: normal Keywords: patch

Created on 2014-06-12 18:35 by ethan.furman, last changed 2022-04-11 14:58 by admin. This issue is now closed.

File name Uploaded Description Edit
issue21738.stoneleaf.01.patch ethan.furman, 2014-06-19 23:21 review
Messages (4)
msg220372 - (view) Author: Ethan Furman (ethan.furman) * (Python committer) Date: 2014-06-12 18:35
Replacing __new__ in an Enum subclass is not possible /in the subclass definition/, but is easily replaced via monkey-patching after the class has been defined.

Docs need to be updated to reflect this.
msg221037 - (view) Author: Ezio Melotti (ezio.melotti) * (Python committer) Date: 2014-06-19 22:00
Is this common enough that it deserves to be documented?
msg221052 - (view) Author: Ethan Furman (ethan.furman) * (Python committer) Date: 2014-06-19 23:21
Common, no.  And if the docs were silent on the matter that would be okay, but unfortunately the docs declare that it is not possible, which is just plain wrong.

Patch also mentions _value_ as that is the supported interface when customizing __new__ methods.
msg226974 - (view) Author: Roundup Robot (python-dev) (Python triager) Date: 2014-09-17 02:14
New changeset 28c21f09719e by Ethan Furman in branch '3.4':
Issue21738: clarify usage of __new__ in Enum subclasses

New changeset 91ec34801232 by Ethan Furman in branch 'default':
Issue21738: clarify usage of __new__ in Enum subclasses
Date User Action Args
2022-04-11 14:58:04adminsetgithub: 65937
2014-09-17 02:15:54ethan.furmansetstatus: open -> closed

nosy: + docs@python
assignee: ethan.furman -> docs@python
resolution: fixed
stage: resolved
2014-09-17 02:14:33python-devsetnosy: + python-dev
messages: + msg226974
2014-06-19 23:21:25ethan.furmansetfiles: + issue21738.stoneleaf.01.patch
keywords: + patch
messages: + msg221052
2014-06-19 22:00:59ezio.melottisetnosy: + ezio.melotti
messages: + msg221037

components: + Documentation
type: enhancement
2014-06-12 18:35:45ethan.furmancreate