/usr/lib/python2.7/dist-packages/pybridge/bridge/bidding.py is in pybridge-common 0.3.0-7.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/pybridge/bridge/../../../../../share/pyshared/pybridge/bridge/bidding.py