/usr/lib/python2.7/dist-packages/z3c/pt/ is in python-z3c.pt 2.2.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/z3c/pt/README.txt
/usr/lib/python2.7/dist-packages/z3c/pt/__init__.py
/usr/lib/python2.7/dist-packages/z3c/pt/configure.zcml
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/usr/lib/python2.7/dist-packages/z3c/pt/tests/
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/usr/lib/python2.7/dist-packages/z3c/pt/tests/exists.pt
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/usr/lib/python2.7/dist-packages/z3c/pt/tests/view.pt