Ticket #6542: main.py.patch

main.py

@@ -608 +608 @@
                 del p[k]
             elif v is not None:
                 p[k] = v
-        return mark_safe('?' + '&'.join([u'%s=%s' % (k, v) for k, v in p.items()]).replace(' ', '%20'))
+        try:
+            return mark_safe('?' + '&'.join([u'%s=%s' % (k, v) for k, v in p.items()]).replace(' ', '%20'))
+        except:
+            return mark_safe('?' + '&'.join(['%s=%s' % (str(k), v) for k, v in p.items()]).replace(' ', '%20'))
 
     def get_results(self, request):
         paginator = ObjectPaginator(self.query_set, self.lookup_opts.admin.list_per_page)