UserString.MutableString has been removed in Python 3.0.
Works on issue #2877. Thanks Quentin Gallet-Gilles for the patch.
diff --git a/Lib/test/test_py3kwarn.py b/Lib/test/test_py3kwarn.py
index d023e4b..eed46d1 100644
--- a/Lib/test/test_py3kwarn.py
+++ b/Lib/test/test_py3kwarn.py
@@ -219,6 +219,14 @@
func = getattr(commands, name)
self.assertRaises(DeprecationWarning, func, *([None]*arg_count))
+ def test_mutablestring_removal(self):
+ # UserString.MutableString has been removed in 3.0.
+ import UserString
+ with catch_warning(record=False):
+ warnings.filterwarnings("error", ".*MutableString",
+ DeprecationWarning)
+ self.assertRaises(DeprecationWarning, UserString.MutableString)
+
def test_main():
with catch_warning(record=True):