Issue 45663: is_dataclass() does not work for dataclasses which are subclasses of types.GenericAlias (original) (raw)

Issue45663

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This issue has been migrated to GitHub: https://github.com/python/cpython/issues/89826

classification

Title: is_dataclass() does not work for dataclasses which are subclasses of types.GenericAlias
Type: behavior Stage: resolved
Components: Library (Lib) Versions: Python 3.11, Python 3.10, Python 3.9

process

Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: eric.smith, gvanrossum, miss-islington, serhiy.storchaka
Priority: normal Keywords: patch

Created on 2021-10-28 20:10 by serhiy.storchaka, last changed 2022-04-11 14:59 by admin. This issue is now closed.

Pull Requests
URL Status Linked Edit
PR 29294 merged serhiy.storchaka,2021-10-28 20:14
PR 29925 merged miss-islington,2021-12-05 20:42
PR 29926 merged miss-islington,2021-12-05 20:43
Messages (4)
msg405256 - (view) Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) Date: 2021-10-28 20:10
>>> import dataclasses, types >>> @dataclasses.dataclass ... class A(types.GenericAlias): ... origin: type ... args: type ... >>> dataclasses.is_dataclass(A) True >>> a = A(list, int) >>> dataclasses.is_dataclass(type(a)) True >>> dataclasses.is_dataclass(a) False
msg407739 - (view) Author: Serhiy Storchaka (serhiy.storchaka) * (Python committer) Date: 2021-12-05 20:42
New changeset 446be166861b2f08f87f74018113dd98ca5fca02 by Serhiy Storchaka in branch 'main': bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294) https://github.com/python/cpython/commit/446be166861b2f08f87f74018113dd98ca5fca02
msg407743 - (view) Author: miss-islington (miss-islington) Date: 2021-12-05 21:04
New changeset abceb66c7e33d165361d8a26efb3770faa721aff by Miss Islington (bot) in branch '3.10': bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294) https://github.com/python/cpython/commit/abceb66c7e33d165361d8a26efb3770faa721aff
msg407745 - (view) Author: miss-islington (miss-islington) Date: 2021-12-05 21:25
New changeset 19050711f5a68e50b942b3b7f1f4cf398f27efff by Miss Islington (bot) in branch '3.9': bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294) https://github.com/python/cpython/commit/19050711f5a68e50b942b3b7f1f4cf398f27efff
History
Date User Action Args
2022-04-11 14:59:51 admin set github: 89826
2021-12-07 12:01:12 serhiy.storchaka set status: open -> closedresolution: fixedstage: patch review -> resolved
2021-12-05 21:25:54 miss-islington set messages: +
2021-12-05 21:04:37 miss-islington set messages: +
2021-12-05 20:43:01 miss-islington set pull_requests: + <pull%5Frequest28150>
2021-12-05 20:42:57 miss-islington set nosy: + miss-islingtonpull_requests: + <pull%5Frequest28149>
2021-12-05 20:42:54 serhiy.storchaka set messages: +
2021-10-29 08:41:23 serhiy.storchaka link issue45665 dependencies
2021-10-28 20:14:25 serhiy.storchaka set keywords: + patchstage: patch reviewpull_requests: + <pull%5Frequest27557>
2021-10-28 20:10:31 serhiy.storchaka create