/usr/share/pyshared/zope/viewlet/javascript_viewlet.pt is in python-zope.viewlet 3.7.2-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | <script type="text/javascript" src="some-library.js"
tal:attributes="src view/getURL"></script>
|