Add 'updateexternals' to synchronize externals with remote repo. To synchronize definitions in working copy .hgexternals with remote svn repository: $ hg svn updateexternals To synchronize them with .hgexternals at revision REV: $ hg svn updateexternals REV Last synchronized externals referenced are stored in .hg/svn/externals (a dump of the synchronized .hgexternals).

import sys
import os
sys.path.append(os.path.dirname(os.path.dirname(__file__)))