/usr/lib/python2.7/dist-packages/gt/annotationsketch/ is in python-genometools 1.5.1-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/gt/annotationsketch/__init__.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/block.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/canvas.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/color.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/custom_track.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/custom_track_example.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/diagram.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/feature_index.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/feature_stream.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/graphics.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/image_info.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/layout.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/rec_map.py
/usr/lib/python2.7/dist-packages/gt/annotationsketch/style.py