Guard against rogue tuples.
diff --git a/Lib/xml/etree/ElementTree.py b/Lib/xml/etree/ElementTree.py
index ef94e14..53aa9e7 100644
--- a/Lib/xml/etree/ElementTree.py
+++ b/Lib/xml/etree/ElementTree.py
@@ -585,7 +585,7 @@
     def __str__(self):
         return self.text
     def __repr__(self):
-        return '<QName %r>' % self.text
+        return '<QName %r>' % (self.text,)
     def __hash__(self):
         return hash(self.text)
     def __le__(self, other):