diff --git a/modules/openapi-generator/src/main/resources/python-legacy/api_client.mustache b/modules/openapi-generator/src/main/resources/python-legacy/api_client.mustache
index d5b8a6f2548..de0ef4b9462 100644
--- a/modules/openapi-generator/src/main/resources/python-legacy/api_client.mustache
+++ b/modules/openapi-generator/src/main/resources/python-legacy/api_client.mustache
@@ -715,6 +715,7 @@ class ApiClient(object):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:
diff --git a/samples/client/petstore/python-asyncio/petstore_api/api_client.py b/samples/client/petstore/python-asyncio/petstore_api/api_client.py
index 6bdc318161f..7b655dd2771 100644
--- a/samples/client/petstore/python-asyncio/petstore_api/api_client.py
+++ b/samples/client/petstore/python-asyncio/petstore_api/api_client.py
@@ -692,6 +692,7 @@ class ApiClient(object):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:
diff --git a/samples/client/petstore/python-legacy/petstore_api/api_client.py b/samples/client/petstore/python-legacy/petstore_api/api_client.py
index 072c932db7e..10d903cb0df 100644
--- a/samples/client/petstore/python-legacy/petstore_api/api_client.py
+++ b/samples/client/petstore/python-legacy/petstore_api/api_client.py
@@ -691,6 +691,7 @@ class ApiClient(object):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:
diff --git a/samples/client/petstore/python-tornado/petstore_api/api_client.py b/samples/client/petstore/python-tornado/petstore_api/api_client.py
index 714686f8d6b..2b978d96a8f 100644
--- a/samples/client/petstore/python-tornado/petstore_api/api_client.py
+++ b/samples/client/petstore/python-tornado/petstore_api/api_client.py
@@ -693,6 +693,7 @@ class ApiClient(object):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator:
diff --git a/samples/openapi3/client/petstore/python-legacy/petstore_api/api_client.py b/samples/openapi3/client/petstore/python-legacy/petstore_api/api_client.py
index 072c932db7e..10d903cb0df 100755
--- a/samples/openapi3/client/petstore/python-legacy/petstore_api/api_client.py
+++ b/samples/openapi3/client/petstore/python-legacy/petstore_api/api_client.py
@@ -691,6 +691,7 @@ class ApiClient(object):
                     value = data[klass.attribute_map[attr]]
                     kwargs[attr] = self.__deserialize(value, attr_type)
 
+        kwargs["local_vars_configuration"] = self.configuration
         instance = klass(**kwargs)
 
         if has_discriminator: