diff --git a/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent/openapi_client/exceptions.py b/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent/openapi_client/exceptions.py
index bd5561d241ed..f38ce4018036 100644
--- a/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent/openapi_client/exceptions.py
+++ b/samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent/openapi_client/exceptions.py
@@ -151,6 +151,13 @@ def from_response(
         if http_resp.status == 404:
             raise NotFoundException(http_resp=http_resp, body=body, data=data)
 
+        # Added new conditions for 409 and 422
+        if http_resp.status == 409:
+            raise ConflictException(http_resp=http_resp, body=body, data=data)
+
+        if http_resp.status == 422:
+            raise UnprocessableEntityException(http_resp=http_resp, body=body, data=data)
+
         if 500 <= http_resp.status <= 599:
             raise ServiceException(http_resp=http_resp, body=body, data=data)
         raise ApiException(http_resp=http_resp, body=body, data=data)
@@ -189,6 +196,16 @@ class ServiceException(ApiException):
     pass
 
 
+class ConflictException(ApiException):
+    """Exception for HTTP 409 Conflict."""
+    pass
+
+
+class UnprocessableEntityException(ApiException):
+    """Exception for HTTP 422 Unprocessable Entity."""
+    pass
+
+
 def render_path(path_to_item):
     """Returns a string representation of a path"""
     result = ""
diff --git a/samples/client/echo_api/python/openapi_client/exceptions.py b/samples/client/echo_api/python/openapi_client/exceptions.py
index bd5561d241ed..f38ce4018036 100644
--- a/samples/client/echo_api/python/openapi_client/exceptions.py
+++ b/samples/client/echo_api/python/openapi_client/exceptions.py
@@ -151,6 +151,13 @@ def from_response(
         if http_resp.status == 404:
             raise NotFoundException(http_resp=http_resp, body=body, data=data)
 
+        # Added new conditions for 409 and 422
+        if http_resp.status == 409:
+            raise ConflictException(http_resp=http_resp, body=body, data=data)
+
+        if http_resp.status == 422:
+            raise UnprocessableEntityException(http_resp=http_resp, body=body, data=data)
+
         if 500 <= http_resp.status <= 599:
             raise ServiceException(http_resp=http_resp, body=body, data=data)
         raise ApiException(http_resp=http_resp, body=body, data=data)
@@ -189,6 +196,16 @@ class ServiceException(ApiException):
     pass
 
 
+class ConflictException(ApiException):
+    """Exception for HTTP 409 Conflict."""
+    pass
+
+
+class UnprocessableEntityException(ApiException):
+    """Exception for HTTP 422 Unprocessable Entity."""
+    pass
+
+
 def render_path(path_to_item):
     """Returns a string representation of a path"""
     result = ""
diff --git a/samples/openapi3/client/petstore/python-aiohttp/petstore_api/exceptions.py b/samples/openapi3/client/petstore/python-aiohttp/petstore_api/exceptions.py
index 0cb484becbdb..195e150623d2 100644
--- a/samples/openapi3/client/petstore/python-aiohttp/petstore_api/exceptions.py
+++ b/samples/openapi3/client/petstore/python-aiohttp/petstore_api/exceptions.py
@@ -150,6 +150,13 @@ def from_response(
         if http_resp.status == 404:
             raise NotFoundException(http_resp=http_resp, body=body, data=data)
 
+        # Added new conditions for 409 and 422
+        if http_resp.status == 409:
+            raise ConflictException(http_resp=http_resp, body=body, data=data)
+
+        if http_resp.status == 422:
+            raise UnprocessableEntityException(http_resp=http_resp, body=body, data=data)
+
         if 500 <= http_resp.status <= 599:
             raise ServiceException(http_resp=http_resp, body=body, data=data)
         raise ApiException(http_resp=http_resp, body=body, data=data)
@@ -188,6 +195,16 @@ class ServiceException(ApiException):
     pass
 
 
+class ConflictException(ApiException):
+    """Exception for HTTP 409 Conflict."""
+    pass
+
+
+class UnprocessableEntityException(ApiException):
+    """Exception for HTTP 422 Unprocessable Entity."""
+    pass
+
+
 def render_path(path_to_item):
     """Returns a string representation of a path"""
     result = ""
diff --git a/samples/openapi3/client/petstore/python/petstore_api/exceptions.py b/samples/openapi3/client/petstore/python/petstore_api/exceptions.py
index 81d2d590712f..195e150623d2 100755
--- a/samples/openapi3/client/petstore/python/petstore_api/exceptions.py
+++ b/samples/openapi3/client/petstore/python/petstore_api/exceptions.py
@@ -150,12 +150,11 @@ def from_response(
         if http_resp.status == 404:
             raise NotFoundException(http_resp=http_resp, body=body, data=data)
 
-        # Added new exception classes for 409 and 422
-        
+        # Added new conditions for 409 and 422
         if http_resp.status == 409:
             raise ConflictException(http_resp=http_resp, body=body, data=data)
 
-        if http_resp.status == 422: 
+        if http_resp.status == 422:
             raise UnprocessableEntityException(http_resp=http_resp, body=body, data=data)
 
         if 500 <= http_resp.status <= 599:
@@ -191,16 +190,18 @@ class UnauthorizedException(ApiException):
 class ForbiddenException(ApiException):
     pass
 
-class ConflictException(ApiException):
-    """Exception raised for HTTP 409 Conflict errors."""
+
+class ServiceException(ApiException):
     pass
 
 
-class UnprocessableEntityException(ApiException): 
-    """Exception raised for HTTP 422 Unprocessable Entity errors."""
+class ConflictException(ApiException):
+    """Exception for HTTP 409 Conflict."""
     pass
 
-class ServiceException(ApiException):
+
+class UnprocessableEntityException(ApiException):
+    """Exception for HTTP 422 Unprocessable Entity."""
     pass