diff --git a/python/helpers/StdlibTypes.properties b/python/helpers/StdlibTypes.properties
index 03fb874fffb2..7cffa26fb987 100644
--- a/python/helpers/StdlibTypes.properties
+++ b/python/helpers/StdlibTypes.properties
@@ -1,94 +1,6 @@
 # Python stdlib
 
 
-## 7.5. StringIO
-
-StringIO.StringIO.__init__ = \
-  :type buf: T <= bytes or unicode \n\
-  :rtype: StringIO of T \n\
-
-StringIO.StringIO.getvalue = \
-  :rtype: T \n\
-
-StringIO.StringIO.isatty = \
-  :rtype: bool \n\
-
-StringIO.StringIO.next = \
-  :rtype: T \n\
-
-StringIO.StringIO.read = \
-  :type n: int or long or None \n\
-  :rtype: T \n\
-
-StringIO.StringIO.readline = \
-  :type length: int or long or None \n\
-  :rtype: T \n\
-
-StringIO.StringIO.readlines = \
-  :rtype: list of T \n\
-
-StringIO.StringIO.seek = \
-  :type position: int or long \n\
-
-StringIO.StringIO.tell = \
-  :rtype: int \n\
-
-StringIO.StringIO.write = \
-  :type s: T \n\
-  :rtype: None \n\
-
-StringIO.StringIO.writelines = \
-  :type s: collections.Iterable of T \n\
-
-StringIO.StringIO.__iter__ = \
-  :rtype: StringIO of T \n\
-
-
-## 7.6. cStringIO
-
-cStringIO.StringIO = \
-  :type s: T <= bytes or unicode \n\
-  :rtype: cStringIO.OutputType of T \n\
-
-cStringIO.OutputType.__init__ = \
-  :rtype: cStringIO.OutputType of T <= bytes or unicode \n\
-
-cStringIO.OutputType.getvalue = \
-  :rtype: T \n\
-
-cStringIO.OutputType.isatty = \
-  :rtype: bool \n\
-
-cStringIO.OutputType.next = \
-  :rtype: T \n\
-
-cStringIO.OutputType.read = \
-  :type s: int or long or None \n\
-  :rtype: T \n\
-
-cStringIO.OutputType.readline = \
-  :rtype: T \n\
-
-cStringIO.OutputType.readlines = \
-  :rtype: list of T \n\
-
-cStringIO.OutputType.seek = \
-  :type position: int or long \n\
-
-cStringIO.OutputType.tell = \
-  :rtype: int \n\
-
-cStringIO.OutputType.write = \
-  :type s: T \n\
-  :rtype: None \n\
-
-cStringIO.OutputType.writelines = \
-  :type s: collections.Iterable of T \n\
-
-cStringIO.OutputType.__iter__ = \
-  :rtype: cStringIO.OutputType of T \n\
-
-
 ## 8.3. collections
 
 collections.Iterator.__init__ = \