commit 008651c56ecd15e4677f0acde9c285cff1f2904c
author Raymond Hettinger <python@rcn.com> Sun Jun 22 19:45:07 2014 -0700
committer Raymond Hettinger <python@rcn.com> Sun Jun 22 19:45:07 2014 -0700
tree 85a2ea4fca8d7a2bd39c1b71bc495394f4315ec7
parent f595a127b82ba34ab0b65979ab28bc77491ba00a

Display the name not the group itself

Lib/sre_parse.py

diff --git a/Lib/sre_parse.py b/Lib/sre_parse.py
index 662e49a..0a361ab 100644
--- a/Lib/sre_parse.py
+++ b/Lib/sre_parse.py
@@ -621,7 +621,7 @@
                     if isname(condname):
                         condgroup = state.groupdict.get(condname)
                         if condgroup is None:
-                            msg = "unknown group name: {0!r}".format(condgroup)
+                            msg = "unknown group name: {0!r}".format(condname)
                             raise error(msg)
                     else:
                         try: