Ffix: do not check for __get_validators__ on classes where __get_pydantic_core_schema__ is also defined (#11444)

tlambert03 · web-flow · commit c2102b7c2d76 · 2025-02-17T10:49:40.000-05:00
diff --git a/pydantic/_internal/_generate_schema.py b/pydantic/_internal/_generate_schema.py
@@ -873,7 +873,7 @@ def _generate_schema_from_get_schema_method(self, obj: Any, source: Any) -> core
             # safety measure (because these are inlined in place -- i.e. mutated directly)
             return schema
 
-        if (validators := getattr(obj, '__get_validators__', None)) is not None:
+        if get_schema is None and (validators := getattr(obj, '__get_validators__', None)) is not None:
             from pydantic.v1 import BaseModel as BaseModelV1
 
             if issubclass(obj, BaseModelV1):
diff --git a/tests/test_edge_cases.py b/tests/test_edge_cases.py
@@ -3023,3 +3023,17 @@ class Model(BaseModel):
 
     m = Model(a=1)
     assert m.model_dump() == {}
+
+
+@pytest.mark.filterwarnings('ignore:.*`__get_validators__`.*:DeprecationWarning')
+def test_get_schema_on_classes_with_both_v1_and_v2_apis() -> None:
+    class Model(BaseModel):
+        a: int
+
+        @model_validator(mode='after')
+        def my_model_validator(self):
+            return self
+
+        @classmethod
+        def __get_validators__(cls):
+            raise AssertionError('This should not be called')
