UserString.MutableString has been removed in Python 3.0.
Works on issue #2877. Thanks Quentin Gallet-Gilles for the patch.
diff --git a/Lib/UserString.py b/Lib/UserString.py
index 4ef2265..4460797 100755
--- a/Lib/UserString.py
+++ b/Lib/UserString.py
@@ -146,6 +146,9 @@
A faster and better solution is to rewrite your program using lists."""
def __init__(self, string=""):
+ from warnings import warnpy3k
+ warnpy3k('the class UserString.MutableString has been removed in '
+ 'Python 3.0', stacklevel=2)
self.data = string
def __hash__(self):
raise TypeError, "unhashable type (it is mutable)"