/usr/lib/python2.7/dist-packages/apache_openid/templates/login_page.html is in python-apache-openid 2.0.1-0ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/apache_openid/templates/../../../../../share/pyshared/apache_openid/templates/login_page.html