/usr/lib/python2.7/dist-packages/imposm.parser-1.0.3-nspkg.pth is in python-imposm-parser 1.0.3-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/../../../share/pyshared/imposm.parser-1.0.3-nspkg.pth