Update driveapi/service.py

driveapi/service.py

@@ -9,9 +9,9 @@ def get_credentials():
     # Create credentials object
     credentials_info = {
         'type': 'service_account',
-        'client_email': client_email,
-        'private_key': private_key,
-        'token_uri': token_uri,
+        'client_email': str(client_email),
+        'private_key': str(private_key),
+        'token_uri': str(token_uri),
         'scopes': ['https://www.googleapis.com/auth/drive']
     }