$ hg parents
changeset: 2:4dce38140953
branch: bar
tag: tip
user: Bryan O'Sullivan <bos@serpentine.com>
date: Fri Jun 05 15:49:00 2009 +0000
summary: Terzo commit.
$ hg branches
bar 2:4dce38140953
foo 1:b15761055392 (inattivo)
default 0:fc8fb1089cc0 (inattivo)