Do not allow other keywords as well

Author: sobolevn

mypy/semanal.py

@@ -1745,8 +1745,6 @@ def analyze_typeddict_classdef(self, defn: ClassDef) -> bool:
             if info is None:
                 self.mark_incomplete(defn.name, defn)
             else:
-                if defn.keywords and "metaclass" in defn.keywords:
-                    self.fail('"TypedDict" cannot have a metaclass', defn.keywords["metaclass"])
                 self.prepare_class_def(defn, info, custom_names=True)
             return True
         return False

mypy/semanal_typeddict.py

@@ -323,6 +323,12 @@ def analyze_typeddict_classdef_fields(
         total: bool | None = True
         if "total" in defn.keywords:
             total = require_bool_literal_argument(self.api, defn.keywords["total"], "total", True)
+        if defn.keywords and defn.keywords.keys() != {"total"}:
+            msg = (
+                '"TypedDict" class definition cannot have keywords '
+                'other than "total", got: "{}"'
+            )
+            self.fail(msg.format(", ".join(defn.keywords)), defn)
         required_keys = {
             field
             for (field, t) in zip(fields, types)

test-data/unit/check-typeddict.test

@@ -3404,21 +3404,18 @@ T = TypeVar('T')
 
 class Meta(type): ...
 
-class WithMetaKeyword(TypedDict, metaclass=Meta):  # E: "TypedDict" cannot have a metaclass
+class WithMetaKeyword(TypedDict, metaclass=Meta):  # E: "TypedDict" class definition cannot have keywords other than "total", got: "metaclass"
     ...
 
-class GenericWithMetaKeyword(TypedDict, Generic[T], metaclass=Meta):  # E: "TypedDict" cannot have a metaclass
-    ...
-
-class PositionOfErrorIsPrecise(
-    TypedDict,
-    metaclass=Meta,  # E: "TypedDict" cannot have a metaclass
-):
+class GenericWithMetaKeyword(TypedDict, Generic[T], metaclass=Meta):  # E: "TypedDict" class definition cannot have keywords other than "total", got: "metaclass"
     ...
 
 # We still don't allow this, because the implementation is much easier
 # and it does not make any practical sense to do it:
-class WithTypeMeta(TypedDict, metaclass=type):  # E: "TypedDict" cannot have a metaclass
+class WithTypeMeta(TypedDict, metaclass=type):  # E: "TypedDict" class definition cannot have keywords other than "total", got: "metaclass"
+    ...
+
+class OtherKeywords(TypedDict, a=1, b=2, c=3, total=True):  # E: "TypedDict" class definition cannot have keywords other than "total", got: "a, b, c, total"
     ...
 [builtins fixtures/dict.pyi]
 [typing fixtures/typing-typeddict.pyi]