/usr/lib/python2.7/dist-packages/werkzeug/debug/shared/jquery.js is in python-werkzeug 0.8.1+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/werkzeug/debug/shared/../../../../../../share/pyshared/werkzeug/debug/shared/jquery.js