diff -r 16c4137a413c Objects/stringobject.c
--- a/Objects/stringobject.c	Wed Oct 05 22:34:51 2011 +0200
+++ b/Objects/stringobject.c	Wed Nov 16 00:33:43 2011 +0100
@@ -4476,7 +4476,10 @@
                     }
                     else {
                         iobj = PyNumber_Int(v);
-                        if (iobj==NULL) iobj = PyNumber_Long(v);
+                        if (iobj==NULL) {
+                            PyErr_Clear();
+                            iobj = PyNumber_Long(v);
+                        }
                     }
                     if (iobj!=NULL) {
                         if (PyInt_Check(iobj)) {