restore iterability of ResolverMatch (#38)

Co-authored-by: Anthony Sottile <[email protected]>

Author: asottile-sentry

django-stubs/urls/resolvers.pyi

@@ -1,4 +1,4 @@
-from collections.abc import Callable, Sequence
+from collections.abc import Callable, Iterator, Sequence
 from re import Pattern
 from types import ModuleType
 from typing import Any, TypeAlias, overload
@@ -36,6 +36,8 @@ class ResolverMatch:
         extra_kwargs: dict[str, Any] | None = ...,
     ) -> None: ...
     def __getitem__(self, index: int) -> Any: ...
+    # for tuple unpacking -- python/mypy#2220
+    def __iter__(self) -> Iterator[Any]: ...
 
 def get_resolver(urlconf: str | None = ...) -> URLResolver: ...
 def get_ns_resolver(ns_pattern: str, resolver: URLResolver, converters: tuple) -> URLResolver: ...

scripts/stubtest/allowlist.txt

@@ -284,3 +284,7 @@ django.test.selenium.SeleniumTestCase.__init_subclass__
 
 # Django incorrectly uses a signature of `(self, *args, **kwargs)` when it should be `(self)`.
 django.forms.renderers.Jinja2DivFormRenderer.__init__
+
+# mypy does not understand __getitem__ unpacking python/mypy#2220
+django.urls.ResolverMatch.__iter__
+django.urls.resolvers.ResolverMatch.__iter__

tests/assert_type/urls/test_resolvers.py

@@ -0,0 +1,8 @@
+from django.urls.resolvers import ResolverMatch
+
+
+def f(x: ResolverMatch) -> None:
+    _func, _args, _kwargs = x  # does not error
+    # would be nice but we can't really get this without tuple specialization
+    # as `__getitem__` is implemented as `return (..., ...)[...]`
+    # assert_type(_func, Callable)