Deprecate stringold for removal in 3.0.
diff --git a/Lib/stringold.py b/Lib/stringold.py
index 213a04c..7cbd7aa 100644
--- a/Lib/stringold.py
+++ b/Lib/stringold.py
@@ -18,6 +18,9 @@
 octdigits -- a string containing all characters considered octal digits
 
 """
+from warnings import warnpy3k
+warnpy3k("the stringold module has been removed in Python 3.0", stacklevel=2)
+del warnpy3k
 
 # Some strings for ctype-style character classification
 whitespace = ' \t\n\r\v\f'