From 36947b0b909837e3e37b0171ecce1e1bc28eb5fe Mon Sep 17 00:00:00 2001
From: Eric Spitler <1396382+eric-spitler@users.noreply.github.com>
Date: Wed, 21 Jan 2026 09:04:24 -0700
Subject: [PATCH 1/3] ImportError and isinstance check for pydantic

Resolves #287
---
 sanic_ext/extras/validation/clean.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sanic_ext/extras/validation/clean.py b/sanic_ext/extras/validation/clean.py
index 0dfcd22..e347188 100644
--- a/sanic_ext/extras/validation/clean.py
+++ b/sanic_ext/extras/validation/clean.py
@@ -1,13 +1,17 @@
 from typing import Any, Optional, Type, get_origin, get_type_hints
 
-import pydantic
+try:
+    # Optional dependency
+    from pydantic import BaseModel
+except ImportError:
+    BaseModel = None
 
 
 def clean_data(
     model: type[object],
     data: dict[str, Any],
 ) -> dict[str, Any]:
-    if isinstance(model, pydantic.BaseModel):
+    if isinstance(BaseModel, type) and isinstance(model, pydantic.BaseModel):
         hints: dict[str, type] = {}
         for key, field in model.__annotations__.items():
             hints[key] = field.annotation

From c22a21dc38c3a6ac91f0fc3080f9d894ba534304 Mon Sep 17 00:00:00 2001
From: Eric Spitler <1396382+eric-spitler@users.noreply.github.com>
Date: Tue, 27 Jan 2026 16:37:23 -0700
Subject: [PATCH 2/3] Fix isinstance check for BaseModel

---
 sanic_ext/extras/validation/clean.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sanic_ext/extras/validation/clean.py b/sanic_ext/extras/validation/clean.py
index e347188..e031e02 100644
--- a/sanic_ext/extras/validation/clean.py
+++ b/sanic_ext/extras/validation/clean.py
@@ -11,7 +11,7 @@ def clean_data(
     model: type[object],
     data: dict[str, Any],
 ) -> dict[str, Any]:
-    if isinstance(BaseModel, type) and isinstance(model, pydantic.BaseModel):
+    if isinstance(BaseModel, type) and isinstance(model, BaseModel):
         hints: dict[str, type] = {}
         for key, field in model.__annotations__.items():
             hints[key] = field.annotation

From 059ebed6649657a2d17041615860fedf5cbfcb29 Mon Sep 17 00:00:00 2001
From: Eric Spitler <1396382+eric-spitler@users.noreply.github.com>
Date: Fri, 20 Mar 2026 12:13:00 -0600
Subject: [PATCH 3/3] Update clean.py

use common "is_pydantic" import instead of isinstance check
---
 sanic_ext/extras/validation/clean.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sanic_ext/extras/validation/clean.py b/sanic_ext/extras/validation/clean.py
index e031e02..caff96a 100644
--- a/sanic_ext/extras/validation/clean.py
+++ b/sanic_ext/extras/validation/clean.py
@@ -1,5 +1,7 @@
 from typing import Any, Optional, Type, get_origin, get_type_hints
 
+from sanic_ext.utils.typing import is_pydantic
+
 try:
     # Optional dependency
     from pydantic import BaseModel
@@ -11,7 +13,7 @@ def clean_data(
     model: type[object],
     data: dict[str, Any],
 ) -> dict[str, Any]:
-    if isinstance(BaseModel, type) and isinstance(model, BaseModel):
+    if is_pydantic and isinstance(model, BaseModel):
         hints: dict[str, type] = {}
         for key, field in model.__annotations__.items():
             hints[key] = field.annotation