Description

serhiy-storchaka

opened on Oct 28, 2021

Issue body actions

BPO	45663
Nosy	@gvanrossum, @ericvsmith, @serhiy-storchaka, @miss-islington
PRs	bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias #29294 [3.10] bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294) #29925 [3.9] bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294) #29926

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2021-12-07.12:01:12.403>
created_at = <Date 2021-10-28.20:10:31.152>
labels = ['type-bug', 'library', '3.9', '3.10', '3.11']
title = 'is_dataclass() does not work for dataclasses which are subclasses of types.GenericAlias'
updated_at = <Date 2021-12-07.12:01:12.402>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2021-12-07.12:01:12.402>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2021-12-07.12:01:12.403>
closer = 'serhiy.storchaka'
components = ['Library (Lib)']
creation = <Date 2021-10-28.20:10:31.152>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 45663
keywords = ['patch']
message_count = 4.0
messages = ['405256', '407739', '407743', '407745']
nosy_count = 4.0
nosy_names = ['gvanrossum', 'eric.smith', 'serhiy.storchaka', 'miss-islington']
pr_nums = ['29294', '29925', '29926']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45663'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']

Activity

1. serhiy-storchaka commented on Oct 28, 2021

   

   serhiy-storchaka

   on Oct 28, 2021

   MemberAuthor

   More actions

   >>> 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
2. serhiy-storchaka

   added

   3.9 (EOL)end of lifeend of life

   3.10 (EOL)end of lifeend of life

   3.11only security fixesonly security fixes

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Oct 28, 2021
3. serhiy-storchaka commented on Dec 5, 2021

   

   serhiy-storchaka

   on Dec 5, 2021

   MemberAuthor

   More actions

   New changeset 446be16 by Serhiy Storchaka in branch 'main':
   bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294)
   446be16
4. miss-islington commented on Dec 5, 2021

   

   miss-islington

   on Dec 5, 2021

   Contributor

   More actions

   New changeset abceb66 by Miss Islington (bot) in branch '3.10':
   bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294)
   abceb66
5. miss-islington commented on Dec 5, 2021

   

   miss-islington

   on Dec 5, 2021

   Contributor

   More actions

   New changeset 1905071 by Miss Islington (bot) in branch '3.9':
   bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of types.GenericAlias (GH-29294)
   1905071
6. serhiy-storchaka

   closed this as completedon Dec 7, 2021
7. serhiy-storchaka

   closed this as completedon Dec 7, 2021
8. ezio-melotti

   transferred this issue fromon Apr 10, 2022

Issue actions