🐛 Fixed ignoring unknown-key not silencing the 'Did you mean' message

Author: JoaquimEsteves

mypy/messages.py

@@ -1670,17 +1670,16 @@ def typeddict_key_not_found(
                 context,
             )
         else:
+            err_code = codes.TYPPEDICT_UNKNOWN_KEY if setitem else codes.TYPEDDICT_ITEM
             self.fail(
-                f'TypedDict {format_type(typ)} has no key "{item_name}"',
-                context,
-                code=codes.TYPPEDICT_UNKNOWN_KEY if setitem else codes.TYPEDDICT_ITEM,
+                f'TypedDict {format_type(typ)} has no key "{item_name}"', context, code=err_code
             )
             matches = best_matches(item_name, typ.items.keys())
             if matches:
                 self.note(
                     "Did you mean {}?".format(pretty_seq(matches[:3], "or")),
                     context,
-                    code=codes.TYPEDDICT_ITEM,
+                    code=err_code,
                 )
 
     def typeddict_context_ambiguous(self, types: list[TypedDictType], context: Context) -> None:

test-data/unit/check-errorcodes.test

@@ -476,9 +476,7 @@ class A(TypedDict):
     two_commonparts: int
 
 a: A = {'one_commonpart': 1, 'two_commonparts': 2}
-a['other_commonpart'] = 3  # type: ignore[typeddict-unknown-key] \
-                           # N: Did you mean "one_commonpart" or "two_commonparts"? \
-                           # N: Error code "typeddict-item" not covered by "type: ignore" comment
+a['other_commonpart'] = 3  # type: ignore[typeddict-unknown-key]
 not_exist = a['not_exist'] # type: ignore[typeddict-item]
 [builtins fixtures/dict.pyi]
 [typing fixtures/typing-typeddict.pyi]