diff --git a/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/api/auth_api.py b/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/api/auth_api.py
index 1b75a4ec4b1..278e2f912fc 100644
--- a/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/api/auth_api.py
+++ b/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/api/auth_api.py
@@ -337,8 +337,7 @@ class AuthApi:
         )
 
         _response_types_map: Dict[str, Optional[str]] = {
-            '200': "str"
-            
+            '200': "str",
         }
         response_data = self.api_client.call_api(
             *_param,
@@ -401,8 +400,7 @@ class AuthApi:
         )
 
         _response_types_map: Dict[str, Optional[str]] = {
-            '200': "str"
-            
+            '200': "str",
         }
         response_data = self.api_client.call_api(
             *_param,
@@ -465,8 +463,7 @@ class AuthApi:
         )
 
         _response_types_map: Dict[str, Optional[str]] = {
-            '200': "str"
-            
+            '200': "str",
         }
         response_data = self.api_client.call_api(
             *_param,
diff --git a/samples/client/echo_api/python/openapi_client/api/auth_api.py b/samples/client/echo_api/python/openapi_client/api/auth_api.py
index 1b75a4ec4b1..278e2f912fc 100644
--- a/samples/client/echo_api/python/openapi_client/api/auth_api.py
+++ b/samples/client/echo_api/python/openapi_client/api/auth_api.py
@@ -337,8 +337,7 @@ class AuthApi:
         )
 
         _response_types_map: Dict[str, Optional[str]] = {
-            '200': "str"
-            
+            '200': "str",
         }
         response_data = self.api_client.call_api(
             *_param,
@@ -401,8 +400,7 @@ class AuthApi:
         )
 
         _response_types_map: Dict[str, Optional[str]] = {
-            '200': "str"
-            
+            '200': "str",
         }
         response_data = self.api_client.call_api(
             *_param,
@@ -465,8 +463,7 @@ class AuthApi:
         )
 
         _response_types_map: Dict[str, Optional[str]] = {
-            '200': "str"
-            
+            '200': "str",
         }
         response_data = self.api_client.call_api(
             *_param,
diff --git a/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model400_response.py b/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model400_response.py
index fdc57158317..bc6b9ea992f 100644
--- a/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model400_response.py
+++ b/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model400_response.py
@@ -34,7 +34,8 @@ class TestErrorResponsesWithModel400Response(BaseModel):
 
     model_config = {
         "populate_by_name": True,
-        "validate_assignment": True
+        "validate_assignment": True,
+        "protected_namespaces": (),
     }
 
 
diff --git a/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model404_response.py b/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model404_response.py
index 2b950183f9d..14afd3b169f 100644
--- a/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model404_response.py
+++ b/samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_error_responses_with_model404_response.py
@@ -34,7 +34,8 @@ class TestErrorResponsesWithModel404Response(BaseModel):
 
     model_config = {
         "populate_by_name": True,
-        "validate_assignment": True
+        "validate_assignment": True,
+        "protected_namespaces": (),
     }
 
 
diff --git a/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model400_response.py b/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model400_response.py
index 10d52bd238b..cf0098df56c 100644
--- a/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model400_response.py
+++ b/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model400_response.py
@@ -35,7 +35,8 @@ class TestErrorResponsesWithModel400Response(BaseModel):
 
     model_config = {
         "populate_by_name": True,
-        "validate_assignment": True
+        "validate_assignment": True,
+        "protected_namespaces": (),
     }
 
 
diff --git a/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model404_response.py b/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model404_response.py
index a92febbe29b..aa8d6232def 100644
--- a/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model404_response.py
+++ b/samples/openapi3/client/petstore/python/petstore_api/models/test_error_responses_with_model404_response.py
@@ -35,7 +35,8 @@ class TestErrorResponsesWithModel404Response(BaseModel):
 
     model_config = {
         "populate_by_name": True,
-        "validate_assignment": True
+        "validate_assignment": True,
+        "protected_namespaces": (),
     }