Incorrect repr of InitVar of a type alias

[serhiy-storchaka]

BPO	45662
Nosy	@gvanrossum, @ericvsmith, @serhiy-storchaka, @miss-islington
PRs	bpo-45662: Fix the repr of InitVar with a type alias to the built-in class #29291 [3.10] bpo-45662: Fix the repr of InitVar with a type alias to the built-in class (GH-29291) #29923 [3.9] bpo-45662: Fix the repr of InitVar with a type alias to the built-in class (GH-29291) #29924

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

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GitHub fields:

assignee = None
closed_at = <Date 2021-12-10.09:47:23.655>
created_at = <Date 2021-10-28.19:46:03.203>
labels = ['type-bug', 'library', '3.9', '3.10', '3.11']
title = 'Incorrect repr of InitVar of a type alias'
updated_at = <Date 2021-12-10.09:47:23.654>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2021-12-10.09:47:23.654>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2021-12-10.09:47:23.655>
closer = 'serhiy.storchaka'
components = ['Library (Lib)']
creation = <Date 2021-10-28.19:46:03.203>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 45662
keywords = ['patch']
message_count = 4.0
messages = ['405241', '407738', '407742', '408184']
nosy_count = 4.0
nosy_names = ['gvanrossum', 'eric.smith', 'serhiy.storchaka', 'miss-islington']
pr_nums = ['29291', '29923', '29924']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45662'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']

[serhiy-storchaka]

The repr of InitVar preserves type aliases from the typing module, but not builtin.

>>> import typing, dataclasses
>>> dataclasses.InitVar[typing.List[int]]
dataclasses.InitVar[typing.List[int]]
>>> dataclasses.InitVar[list[int]]
dataclasses.InitVar[list]

[serhiy-storchaka]

New changeset 1fd4de5 by Serhiy Storchaka in branch 'main':
bpo-45662: Fix the repr of InitVar with a type alias to the built-in class (GH-29291)
1fd4de5

[miss-islington]

New changeset f1dd5ed by Miss Islington (bot) in branch '3.10':
bpo-45662: Fix the repr of InitVar with a type alias to the built-in class (GH-29291)
f1dd5ed

[serhiy-storchaka]

New changeset fb8aad1 by Miss Islington (bot) in branch '3.9':
[3.9] bpo-45662: Fix the repr of InitVar with a type alias to the built-in class (GH-29291) (GH-29924)
fb8aad1