/usr/lib/python2.7/dist-packages/graphite/templates/ is in graphite-web 0.9.12+debian-6.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/graphite/templates/500.html
/usr/lib/python2.7/dist-packages/graphite/templates/browser.html
/usr/lib/python2.7/dist-packages/graphite/templates/browserHeader.html
/usr/lib/python2.7/dist-packages/graphite/templates/cli.html
/usr/lib/python2.7/dist-packages/graphite/templates/composer.html
/usr/lib/python2.7/dist-packages/graphite/templates/dashboard.html
/usr/lib/python2.7/dist-packages/graphite/templates/dashboardHelp.html
/usr/lib/python2.7/dist-packages/graphite/templates/editProfile.html
/usr/lib/python2.7/dist-packages/graphite/templates/event.html
/usr/lib/python2.7/dist-packages/graphite/templates/events.html
/usr/lib/python2.7/dist-packages/graphite/templates/graphlot.html
/usr/lib/python2.7/dist-packages/graphite/templates/login.html
/usr/lib/python2.7/dist-packages/graphite/templates/version.html