/usr/lib/python2.7/dist-packages/roadmapplugin/__init__.py is in trac-roadmap 0.4.1+r11241-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/roadmapplugin/../../../../share/pyshared/roadmapplugin/__init__.py