[5.0] Update core.paginator (#1946)

* [5.0] Update `core.paginator`

* Feedback

django-stubs/core/paginator.pyi

@@ -1,6 +1,7 @@
 from collections.abc import Iterable, Iterator, Sequence, Sized
 from typing import ClassVar, Generic, Protocol, TypeVar, overload, type_check_only
 
+from django.db.fields import _ErrorMessagesDict
 from django.utils.functional import _StrPromise, cached_property
 
 class UnorderedObjectListWarning(RuntimeWarning): ...
@@ -19,6 +20,8 @@ class _SupportsPagination(Protocol[_T], Sized, Iterable):
 
 class Paginator(Generic[_T]):
     ELLIPSIS: ClassVar[_StrPromise]
+    default_error_messages: ClassVar[_ErrorMessagesDict]
+    error_messages: _ErrorMessagesDict
     object_list: _SupportsPagination[_T]
     per_page: int
     orphans: int
@@ -29,6 +32,7 @@ class Paginator(Generic[_T]):
         per_page: int | str,
         orphans: int = ...,
         allow_empty_first_page: bool = ...,
+        error_messages: _ErrorMessagesDict | None = ...,
     ) -> None: ...
     def __iter__(self) -> Iterator[Page[_T]]: ...
     def validate_number(self, number: int | float | str) -> int: ...

scripts/stubtest/allowlist_todo_django50.txt

@@ -124,8 +124,6 @@ django.core.handlers.asgi.ASGIHandler.run_get_response
 django.core.handlers.asgi.get_script_prefix
 django.core.management.commands.inspectdb.Command.normalize_table_name
 django.core.management.commands.optimizemigration
-django.core.paginator.Paginator.__init__
-django.core.paginator.Paginator.default_error_messages
 django.core.serializers.base.PickleSerializer
 django.db.backends.base.base.timezone_constructor
 django.db.backends.base.features.BaseDatabaseFeatures.delete_can_self_reference_subquery