From 1586ee9cd6642025117775b6474710e58903abe6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebasti=C3=A1n=20Ram=C3=ADrez?= <tiangolo@gmail.com>
Date: Sat, 20 Dec 2025 13:22:06 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=A5=20Remove=20additional=20usages=20o?=
 =?UTF-8?q?f=20Pydantic=20v1?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 fastapi/datastructures.py          | 16 ----------------
 fastapi/params.py                  | 11 ++---------
 fastapi/temp_pydantic_v1_params.py | 11 ++---------
 3 files changed, 4 insertions(+), 34 deletions(-)

diff --git a/fastapi/datastructures.py b/fastapi/datastructures.py
index b38a326de..492cbfccc 100644
--- a/fastapi/datastructures.py
+++ b/fastapi/datastructures.py
@@ -1,4 +1,3 @@
-from collections.abc import Iterable
 from typing import (
     Annotated,
     Any,
@@ -135,27 +134,12 @@ class UploadFile(StarletteUploadFile):
         """
         return await super().close()
 
-    @classmethod
-    def __get_validators__(cls: type["UploadFile"]) -> Iterable[Callable[..., Any]]:
-        yield cls.validate
-
-    @classmethod
-    def validate(cls: type["UploadFile"], v: Any) -> Any:
-        if not isinstance(v, StarletteUploadFile):
-            raise ValueError(f"Expected UploadFile, received: {type(v)}")
-        return v
-
     @classmethod
     def _validate(cls, __input_value: Any, _: Any) -> "UploadFile":
         if not isinstance(__input_value, StarletteUploadFile):
             raise ValueError(f"Expected UploadFile, received: {type(__input_value)}")
         return cast(UploadFile, __input_value)
 
-    # TODO: remove when deprecating Pydantic v1
-    @classmethod
-    def __modify_schema__(cls, field_schema: dict[str, Any]) -> None:
-        field_schema.update({"type": "string", "format": "binary"})
-
     @classmethod
     def __get_pydantic_json_schema__(
         cls, core_schema: CoreSchema, handler: GetJsonSchemaHandler
diff --git a/fastapi/params.py b/fastapi/params.py
index 97d57a2a5..c776c4a59 100644
--- a/fastapi/params.py
+++ b/fastapi/params.py
@@ -9,7 +9,6 @@ from pydantic.fields import FieldInfo
 from typing_extensions import Literal, deprecated
 
 from ._compat import (
-    PYDANTIC_VERSION_MINOR_TUPLE,
     Undefined,
 )
 
@@ -110,10 +109,7 @@ class Param(FieldInfo):  # type: ignore[misc]
                 stacklevel=4,
             )
         current_json_schema_extra = json_schema_extra or extra
-        if PYDANTIC_VERSION_MINOR_TUPLE < (2, 7):
-            self.deprecated = deprecated
-        else:
-            kwargs["deprecated"] = deprecated
+        kwargs["deprecated"] = deprecated
 
         if serialization_alias in (_Unset, None) and isinstance(alias, str):
             serialization_alias = alias
@@ -568,10 +564,7 @@ class Body(FieldInfo):  # type: ignore[misc]
                 stacklevel=4,
             )
         current_json_schema_extra = json_schema_extra or extra
-        if PYDANTIC_VERSION_MINOR_TUPLE < (2, 7):
-            self.deprecated = deprecated
-        else:
-            kwargs["deprecated"] = deprecated
+        kwargs["deprecated"] = deprecated
         if serialization_alias in (_Unset, None) and isinstance(alias, str):
             serialization_alias = alias
         if validation_alias in (_Unset, None):
diff --git a/fastapi/temp_pydantic_v1_params.py b/fastapi/temp_pydantic_v1_params.py
index b6c804dc4..a01d4a2aa 100644
--- a/fastapi/temp_pydantic_v1_params.py
+++ b/fastapi/temp_pydantic_v1_params.py
@@ -6,7 +6,6 @@ from fastapi.params import ParamTypes
 from typing_extensions import deprecated
 
 from ._compat.may_v1 import FieldInfo, Undefined
-from ._compat.shared import PYDANTIC_VERSION_MINOR_TUPLE
 
 _Unset: Any = Undefined
 
@@ -98,10 +97,7 @@ class Param(FieldInfo):  # type: ignore[misc]
                 stacklevel=4,
             )
         current_json_schema_extra = json_schema_extra or extra
-        if PYDANTIC_VERSION_MINOR_TUPLE < (2, 7):
-            self.deprecated = deprecated
-        else:
-            kwargs["deprecated"] = deprecated
+        kwargs["deprecated"] = deprecated
         kwargs["regex"] = pattern or regex
         kwargs.update(**current_json_schema_extra)
         use_kwargs = {k: v for k, v in kwargs.items() if v is not _Unset}
@@ -541,10 +537,7 @@ class Body(FieldInfo):  # type: ignore[misc]
                 stacklevel=4,
             )
         current_json_schema_extra = json_schema_extra or extra
-        if PYDANTIC_VERSION_MINOR_TUPLE < (2, 7):
-            self.deprecated = deprecated
-        else:
-            kwargs["deprecated"] = deprecated
+        kwargs["deprecated"] = deprecated
         kwargs["regex"] = pattern or regex
         kwargs.update(**current_json_schema_extra)