/usr/share/doc/python-mpi4py-doc/html/_static/searchtools.js is in python-mpi4py-doc 1.3.1+hg20131106-1build3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python-mpi4py-doc/html/_static/../../../../javascript/sphinxdoc/1.0/searchtools.js