Index: trunk/packages/invirt-dev/debian/rules
===================================================================
--- trunk/packages/invirt-dev/debian/rules	(revision 2627)
+++ trunk/packages/invirt-dev/debian/rules	(revision 2630)
@@ -2,4 +2,12 @@
 
 DEB_PYTHON_SYSTEM=pysupport
+
+# We use --no-start instead of letting dh_installinit do its thing
+# because, in the postinst, dh_installinit's automatically added code
+# runs before dh_pysupport's automatically added code.
+#
+# This means that when the initscript is started, Python modules
+# installed by the package haven't been fully installed yet.
+DEB_DH_INSTALLINIT_ARGS += --no-start
 
 include /usr/share/cdbs/1/rules/debhelper.mk