Define _create_typeddict(), change __name__

Author: Viicos

src/test_typing_extensions.py

@@ -5089,7 +5089,7 @@ def test_inlined(self):
         self.assertIsSubclass(TD, typing.MutableMapping)
         self.assertNotIsSubclass(TD, collections.abc.Sequence)
         self.assertTrue(is_typeddict(TD))
-        self.assertEqual(TD.__name__, "<inlined TypedDict>")
+        self.assertEqual(TD.__name__, "<inline TypedDict>")
         self.assertEqual(TD.__module__, __name__)
         self.assertEqual(TD.__bases__, (dict,))
         self.assertEqual(TD.__total__, True)

src/typing_extensions.py

@@ -1078,6 +1078,66 @@ def __subclasscheck__(cls, other):
 
     _TypedDict = type.__new__(_TypedDictMeta, 'TypedDict', (), {})
 
+    def _create_typeddict(
+        typename,
+        fields,
+        /,
+        *,
+        typing_is_inline,
+        total,
+        closed,
+        extra_items,
+        **kwargs,
+    ):
+        if fields is _marker or fields is None:
+            if fields is _marker:
+                deprecated_thing = (
+                    "Failing to pass a value for the 'fields' parameter"
+                )
+            else:
+                deprecated_thing = "Passing `None` as the 'fields' parameter"
+
+            example = f"`{typename} = TypedDict({typename!r}, {{}})`"
+            deprecation_msg = (
+                f"{deprecated_thing} is deprecated and will be disallowed in "
+                "Python 3.15. To create a TypedDict class with 0 fields "
+                "using the functional syntax, pass an empty dictionary, e.g. "
+            ) + example + "."
+            warnings.warn(deprecation_msg, DeprecationWarning, stacklevel=2)
+            # Support a field called "closed"
+            if closed is not False and closed is not True and closed is not None:
+                kwargs["closed"] = closed
+                closed = None
+            # Or "extra_items"
+            if extra_items is not NoExtraItems:
+                kwargs["extra_items"] = extra_items
+                extra_items = NoExtraItems
+            fields = kwargs
+        elif kwargs:
+            raise TypeError("TypedDict takes either a dict or keyword arguments,"
+                            " but not both")
+        if kwargs:
+            if sys.version_info >= (3, 13):
+                raise TypeError("TypedDict takes no keyword arguments")
+            warnings.warn(
+                "The kwargs-based syntax for TypedDict definitions is deprecated "
+                "in Python 3.11, will be removed in Python 3.13, and may not be "
+                "understood by third-party type checkers.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+
+        ns = {'__annotations__': dict(fields)}
+        module = _caller(depth=5 if typing_is_inline else 3)
+        if module is not None:
+            # Setting correct module is necessary to make typed dict classes
+            # pickleable.
+            ns['__module__'] = module
+
+        td = _TypedDictMeta(typename, (), ns, total=total, closed=closed,
+                            extra_items=extra_items)
+        td.__orig_bases__ = (TypedDict,)
+        return td
 
     class _TypedDictSpecialForm(_ExtensionsSpecialForm, _root=True):
         def __call__(
@@ -1089,58 +1149,17 @@ def __call__(
             total=True,
             closed=None,
             extra_items=NoExtraItems,
-            __typing_is_inline__=False,
             **kwargs
         ):
-            if fields is _marker or fields is None:
-                if fields is _marker:
-                    deprecated_thing = (
-                        "Failing to pass a value for the 'fields' parameter"
-                    )
-                else:
-                    deprecated_thing = "Passing `None` as the 'fields' parameter"
-
-                example = f"`{typename} = TypedDict({typename!r}, {{}})`"
-                deprecation_msg = (
-                    f"{deprecated_thing} is deprecated and will be disallowed in "
-                    "Python 3.15. To create a TypedDict class with 0 fields "
-                    "using the functional syntax, pass an empty dictionary, e.g. "
-                ) + example + "."
-                warnings.warn(deprecation_msg, DeprecationWarning, stacklevel=2)
-                # Support a field called "closed"
-                if closed is not False and closed is not True and closed is not None:
-                    kwargs["closed"] = closed
-                    closed = None
-                # Or "extra_items"
-                if extra_items is not NoExtraItems:
-                    kwargs["extra_items"] = extra_items
-                    extra_items = NoExtraItems
-                fields = kwargs
-            elif kwargs:
-                raise TypeError("TypedDict takes either a dict or keyword arguments,"
-                                " but not both")
-            if kwargs:
-                if sys.version_info >= (3, 13):
-                    raise TypeError("TypedDict takes no keyword arguments")
-                warnings.warn(
-                    "The kwargs-based syntax for TypedDict definitions is deprecated "
-                    "in Python 3.11, will be removed in Python 3.13, and may not be "
-                    "understood by third-party type checkers.",
-                    DeprecationWarning,
-                    stacklevel=2,
-                )
-
-            ns = {'__annotations__': dict(fields)}
-            module = _caller(depth=5 if __typing_is_inline__ else 2)
-            if module is not None:
-                # Setting correct module is necessary to make typed dict classes
-                # pickleable.
-                ns['__module__'] = module
-
-            td = _TypedDictMeta(typename, (), ns, total=total, closed=closed,
-                                extra_items=extra_items)
-            td.__orig_bases__ = (TypedDict,)
-            return td
+            return _create_typeddict(
+                typename,
+                fields,
+                typing_is_inline=False,
+                total=total,
+                closed=closed,
+                extra_items=extra_items,
+                **kwargs,
+            )
 
     @_ensure_subclassable(lambda bases: (_TypedDict,))
     @_TypedDictSpecialForm
@@ -1199,8 +1218,14 @@ class Point2D(TypedDict):
                 "TypedDict[...] should be used with a single dict argument"
             )
 
-        # Delegate to _TypedDictSpecialForm.__call__:
-        return self("<inlined TypedDict>", args[0], __typing_is_inline__=True)
+        return _create_typeddict(
+            "<inline TypedDict>",
+            args[0],
+            typing_is_inline=True,
+            total=True,
+            closed=None,
+            extra_items=NoExtraItems,
+        )
 
     _TYPEDDICT_TYPES = (typing._TypedDictMeta, _TypedDictMeta)