Fixing syntax error

leapi/leobject.py

@@ -31,7 +31,7 @@ class _LeObject(_LeCrud):
     _leo_fieldtypes = dict()
     
     ## @brief Stores the names of the fields storing the EM class uid and EM type uid
-    _me_uid_field_names = tuple(None, None)
+    _me_uid_field_names = (None, None)
     
     ## @brief Instanciate a partial LeObject with a lodel_id
     # @note use the get_instance method to fetch datas and instanciate a concret LeObject