/usr/lib/python2.7/dist-packages/fontTools/varLib/ is in python-fonttools 3.21.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/fontTools/varLib/__init__.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/__main__.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/builder.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/designspace.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/interpolatable.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/interpolate_layout.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/iup.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/merger.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/models.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/mutator.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/mvar.py
/usr/lib/python2.7/dist-packages/fontTools/varLib/varStore.py