https://bugs.gentoo.org/show_bug.cgi?id=423817

--- dwarves-1.10/ostra/ostra-cg
+++ dwarves-1.10/ostra/ostra-cg
@@ -10,7 +10,9 @@
 # under the terms of version 2 of the GNU General Public License as
 # published by the Free Software Foundation.
 
-import sys, datetime, os, ostra
+import sys
+sys.path.insert(0, "/usr/share/dwarves/runtime/python")
+import datetime, os, ostra
 
 class_def = None