diff --git a/mercurial/context.py b/mercurial/context.py
--- a/mercurial/context.py
+++ b/mercurial/context.py
@@ -7,8 +7,7 @@
 
 from node import *
 from i18n import gettext as _
-from demandload import demandload
-demandload(globals(), "ancestor bdiff repo revlog util os")
+import ancestor, bdiff, repo, revlog, util, os
 
 class changectx(object):
     """A changecontext object makes access to data related to a particular