diff --git a/python/helpers/StdlibTypes.properties b/python/helpers/StdlibTypes.properties
index 32d26611ecf8..0cc9d7d78116 100644
--- a/python/helpers/StdlibTypes.properties
+++ b/python/helpers/StdlibTypes.properties
@@ -1,15 +1,5 @@
 # Python stdlib
 
-## 2. Built-in functions
-
-__builtin__.open = \
-  :type name: string \n\
-  :type mode: string \n\
-  :type buffering: int \n\
-  :type encoding: string or None \n\
-  :type errors: string or None \n\
-  :rtype: file \n\
-
 
 ## 5.4. Numeric types