diff --git a/samples/client/petstore/python-asyncio/petstore_api/configuration.py b/samples/client/petstore/python-asyncio/petstore_api/configuration.py
index d954e9f08ebc..16afbfa72789 100644
--- a/samples/client/petstore/python-asyncio/petstore_api/configuration.py
+++ b/samples/client/petstore/python-asyncio/petstore_api/configuration.py
@@ -122,7 +122,6 @@ class Configuration(object):
 
     def __init__(self, host=None,
                  api_key=None, api_key_prefix=None,
-                 access_token=None,
                  username=None, password=None,
                  discard_unknown_keys=False,
                  disabled_client_side_validations="",
@@ -147,7 +146,6 @@ def __init__(self, host=None,
         """Temp file folder for downloading files
         """
         # Authentication Settings
-        self.access_token = access_token
         self.api_key = {}
         if api_key:
             self.api_key = api_key
@@ -169,6 +167,9 @@ def __init__(self, host=None,
         """
         self.discard_unknown_keys = discard_unknown_keys
         self.disabled_client_side_validations = disabled_client_side_validations
+        self.access_token = None
+        """access token for OAuth/Bearer
+        """
         self.logger = {}
         """Logging Settings
         """
diff --git a/samples/client/petstore/python-tornado/petstore_api/configuration.py b/samples/client/petstore/python-tornado/petstore_api/configuration.py
index 43bd4f48ed2f..d5fc19dc02fb 100644
--- a/samples/client/petstore/python-tornado/petstore_api/configuration.py
+++ b/samples/client/petstore/python-tornado/petstore_api/configuration.py
@@ -123,7 +123,6 @@ class Configuration(object):
 
     def __init__(self, host=None,
                  api_key=None, api_key_prefix=None,
-                 access_token=None,
                  username=None, password=None,
                  discard_unknown_keys=False,
                  disabled_client_side_validations="",
@@ -148,7 +147,6 @@ def __init__(self, host=None,
         """Temp file folder for downloading files
         """
         # Authentication Settings
-        self.access_token = access_token
         self.api_key = {}
         if api_key:
             self.api_key = api_key
@@ -170,6 +168,9 @@ def __init__(self, host=None,
         """
         self.discard_unknown_keys = discard_unknown_keys
         self.disabled_client_side_validations = disabled_client_side_validations
+        self.access_token = None
+        """access token for OAuth/Bearer
+        """
         self.logger = {}
         """Logging Settings
         """
diff --git a/samples/openapi3/client/extensions/x-auth-id-alias/python/x_auth_id_alias/configuration.py b/samples/openapi3/client/extensions/x-auth-id-alias/python/x_auth_id_alias/configuration.py
index 656eb7811859..c71b06a8aa24 100644
--- a/samples/openapi3/client/extensions/x-auth-id-alias/python/x_auth_id_alias/configuration.py
+++ b/samples/openapi3/client/extensions/x-auth-id-alias/python/x_auth_id_alias/configuration.py
@@ -102,6 +102,7 @@ class Configuration(object):
 
     def __init__(self, host=None,
                  api_key=None, api_key_prefix=None,
+                 access_token=None,
                  username=None, password=None,
                  discard_unknown_keys=False,
                  disabled_client_side_validations="",
@@ -126,6 +127,7 @@ def __init__(self, host=None,
         """Temp file folder for downloading files
         """
         # Authentication Settings
+        self.access_token = access_token
         self.api_key = {}
         if api_key:
             self.api_key = api_key
diff --git a/samples/openapi3/client/features/dynamic-servers/python/dynamic_servers/configuration.py b/samples/openapi3/client/features/dynamic-servers/python/dynamic_servers/configuration.py
index bd674fc5907d..d826515c081b 100644
--- a/samples/openapi3/client/features/dynamic-servers/python/dynamic_servers/configuration.py
+++ b/samples/openapi3/client/features/dynamic-servers/python/dynamic_servers/configuration.py
@@ -82,6 +82,7 @@ class Configuration(object):
 
     def __init__(self, host=None,
                  api_key=None, api_key_prefix=None,
+                 access_token=None,
                  username=None, password=None,
                  discard_unknown_keys=False,
                  disabled_client_side_validations="",
@@ -106,6 +107,7 @@ def __init__(self, host=None,
         """Temp file folder for downloading files
         """
         # Authentication Settings
+        self.access_token = access_token
         self.api_key = {}
         if api_key:
             self.api_key = api_key