Issue 355 (#376)

* Mapping instead of Dict type annotation for context in render() with test

* removed Union and Context

* typo

Co-authored-by: Kacper Szmigiel <szmigielkacper@gmai.com>

django-stubs/shortcuts.pyi

@@ -1,4 +1,4 @@
-from typing import Any, Callable, Dict, List, Optional, Protocol, Sequence, Type, TypeVar, Union
+from typing import Any, Callable, List, Mapping, Optional, Protocol, Sequence, Type, TypeVar, Union
 
 from django.db.models.base import Model
 from django.http.response import (
@@ -12,7 +12,7 @@ from django.http import HttpRequest
 
 def render_to_response(
     template_name: Union[str, Sequence[str]],
-    context: Optional[Dict[str, Any]] = ...,
+    context: Optional[Mapping[str, Any]] = ...,
     content_type: Optional[str] = ...,
     status: Optional[int] = ...,
     using: Optional[str] = ...,
@@ -20,7 +20,7 @@ def render_to_response(
 def render(
     request: HttpRequest,
     template_name: Union[str, Sequence[str]],
-    context: Optional[Dict[str, Any]] = ...,
+    context: Optional[Mapping[str, Any]] = ...,
     content_type: Optional[str] = ...,
     status: Optional[int] = ...,
     using: Optional[str] = ...,

test-data/typecheck/test_shortcuts.yml

@@ -36,3 +36,16 @@
                 from django.db import models
                 class MyUser(models.Model):
                     pass
+
+-   case: check_render_function_arguments_annotations
+    main: |
+        from typing import Any
+        from typing_extensions import TypedDict
+        from django.shortcuts import render
+        from django.http.request import HttpRequest
+
+        TestContext = TypedDict("TestContext", {"user": Any})
+        test_context: TestContext = {"user": "test"}
+        reveal_type(test_context) # N: Revealed type is 'TypedDict('main.TestContext', {'user': Any})'
+        reveal_type(render(HttpRequest(), '', test_context)) # N: Revealed type is 'django.http.response.HttpResponse'
+