mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 08:59:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

dataclasses: Avoid using private class (#124465)

Browse source 
typing.get_origin() does what we need here, without reaching into
typing internals. This shouldn't change any behavior (so I am going
to skip news), but it sets a good example for other users introspecting
typing objects.
This commit is contained in:
Jelle Zijlstra 2024-09-24 14:02:18 -07:00 • committed by GitHub
parent 5a60566074
commit 950fab46ad
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 1 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Lib/dataclasses.py
View file

@ -690,11 +690,8 @@ def _frozen_get_del_attr(cls, fields, func_builder):
def _is_classvar(a_type, typing):
# This test uses a typing internal class, but it's the best way to
# test if this is a ClassVar.
return (a_type is typing.ClassVar
or (type(a_type) is typing._GenericAlias
and a_type.__origin__ is typing.ClassVar))
or (typing.get_origin(a_type) is typing.ClassVar))
def _is_initvar(a_type, dataclasses):