/usr/lib/python2.7/ is in python-pyrex 0.9.8.5-2.1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/Pyrex-0.9.8.5.egg-info
/usr/lib/python2.7/dist-packages/Pyrex/
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