MercurialをMacOS X 10.7 Lion用にアップデート

OS X 10.7 Lion をあれこれ触ってきて、そろそろ開発環境も本格的に移行しようかな?ということでターミナルで hg と打ってみたら…エラー!

paraches-no-iMac:speedPicker paraches$ hg
abort: couldn't find mercurial libraries in [/usr/local/bin /usr/lib/python2.6/site-packages /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7 /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC /Library/Python/2.7/site-packages]
(check your install and PYTHONPATH)
paraches-no-iMac:speedPicker paraches$ 

MacHG はとりあえず動いているようだけど、コマンドラインでエラーが出るのも気持ち悪いのでグーグル先生に聞いてみた。