🔥 Remove more unused references to Pydantic v1

fastapi/dependencies/utils.py

@@ -48,7 +48,7 @@ from fastapi.concurrency import (
     contextmanager_in_threadpool,
 )
 from fastapi.dependencies.models import Dependant
-from fastapi.exceptions import DependencyScopeError, PydanticV1NotSupportedError
+from fastapi.exceptions import DependencyScopeError
 from fastapi.logger import logger
 from fastapi.security.oauth2 import SecurityScopes
 from fastapi.types import DependencyCacheKey
@@ -318,11 +318,6 @@ def get_dependant(
             )
             continue
         assert param_details.field is not None
-        if isinstance(param_details.field, may_v1.ModelField):
-            raise PydanticV1NotSupportedError(
-                "pydantic.v1 models are no longer supported by FastAPI."
-                f" Please update the param {param_name}: {param_details.type_annotation!r}."
-            )
         if isinstance(param_details.field.field_info, params.Body):
             dependant.body_params.append(param_details.field)
         else:

fastapi/encoders.py

@@ -234,8 +234,6 @@ def jsonable_encoder(
             exclude_none=exclude_none,
             exclude_defaults=exclude_defaults,
         )
-        if "__root__" in obj_dict:
-            obj_dict = obj_dict["__root__"]
         return jsonable_encoder(
             obj_dict,
             exclude_none=exclude_none,

fastapi/routing.py

@@ -144,36 +144,6 @@ def websocket_session(
     return app
 
 
-def _prepare_response_content(
-    res: Any,
-    *,
-    exclude_unset: bool,
-    exclude_defaults: bool = False,
-    exclude_none: bool = False,
-) -> Any:
-    if isinstance(res, list):
-        return [
-            _prepare_response_content(
-                item,
-                exclude_unset=exclude_unset,
-                exclude_defaults=exclude_defaults,
-                exclude_none=exclude_none,
-            )
-            for item in res
-        ]
-    elif isinstance(res, dict):
-        return {
-            k: _prepare_response_content(
-                v,
-                exclude_unset=exclude_unset,
-                exclude_defaults=exclude_defaults,
-                exclude_none=exclude_none,
-            )
-            for k, v in res.items()
-        }
-    return res
-
-
 def _merge_lifespan_context(
     original_context: Lifespan[Any], nested_context: Lifespan[Any]
 ) -> Lifespan[Any]: