gecko/testing/mochitest/pywebsocket
..
mod_pywebsocket
COPYING
README
README-MOZILLA
standalone.py

Install this package by:
$ python setup.py build
$ sudo python setup.py install

If you're going to use this package as a normal user, run this instead:
$ python setup.py install --user

Then read document by:
$ pydoc mod_pywebsocket