TypeError: 'type' object is not subscriptable

[christianbundy]

Bug report

What's wrong

class Foo(serializers.PrimaryKeyRelatedField[FooModel]): ...

    serializers.PrimaryKeyRelatedField[FooModel]
TypeError: 'type' object is not subscriptable

How is that should be

Success: no issues found in 1 source file

System information

• OS: Linux f16759b1b324 5.10.104-linuxkit #1 SMP PREEMPT Thu Mar 17 17:05:54 UTC 2022 aarch64 GNU/Linux
• python version: 3.10.6
• django version: 4.0.7
• mypy version: 0.961
• django-stubs version: 1.12.0

Also, it isn't asked for by the template, but:

• djangorestframework version: 3.13.1
• djangorestframework-stubs version: 1.7.0

[christianbundy]

I've seen some open issues about similar problems, but:

• This doesn't affect other classes, only PrimaryKeyRelatedField
• The usual suggestion is "upgrade to 3.12+" and I'm on 3.13.

I think this is an unexpected defect, but please let me know if I've just misunderstood the other issues.

[monosans]

Hope this helps #255 (comment)