Pivy uses distutils[2]. To build Pivy, run
python setup.py build
python setup.py install
For older system/distros please use the setup_old.py script to build pivy.
If you find a bug, feel free to create an issue.
If you have any questions regarding Pivy or simply want to discuss with other Pivy users, you can do so at the general coin-discuss mailinglist[2]. pivy is used also in FreeCAD. So you may find some interesting posts at the FreeCAD-forum [5]
[1] https://bitbucket.org/Coin3D/pivy
[2] http://www.python.org/sigs/distutils-sig/
[3] http://issue.coin3d.org/pivy/
[4] https://www.coin3d.org/mailman/listinfo/coin-discuss/
[5] https://forum.freecadweb.org/