List remote branches in Mercurial

The mercurial API allows it:

from mercurial import ui, hg, node

peer = hg.peer(ui.ui(), {}, 'http://hg.python.org/cpython')
for name, rev in peer.branchmap().items():
    print(name, node.short(rev[0]))

The above snippet produces:

default aaa68dce117e
legacy-trunk b77918288f7d
3.2 4787b9b2f860
3.0 4cd9f5e89061
3.1 5a6fa1b8767f
2.3 364638d6434d
2.2 61b0263d6881
2.1 e849d484029f
2.0 5fd74354d73b
2.7 260f3ad7af4b
2.6 f130ce67387d
2.5 b48e1b48e670
2.4 ceec209b26d4