/usr/lib/python2.7/ is in mate-applets 1.8.1+dfsg1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/mate_invest/
/usr/lib/python2.7/dist-packages/mate_invest/quotes.py
/usr/lib/python2.7/dist-packages/mate_invest/about.py
/usr/lib/python2.7/dist-packages/mate_invest/chart.py
/usr/lib/python2.7/dist-packages/mate_invest/help.py
/usr/lib/python2.7/dist-packages/mate_invest/currencies.py
/usr/lib/python2.7/dist-packages/mate_invest/__init__.py
/usr/lib/python2.7/dist-packages/mate_invest/preferences.py
/usr/lib/python2.7/dist-packages/mate_invest/networkmanager.py
/usr/lib/python2.7/dist-packages/mate_invest/widgets.py
/usr/lib/python2.7/dist-packages/mate_invest/defs.py
/usr/lib/python2.7/dist-packages/mate_invest/applet.py