Soho is hosted on GitHub at https://github.com/dbaty/Soho. Feel free to report bugs and provide feedback there. Soho has a test suite that contains both unit tests, integration tests and functional tests which you may run with make test (that uses your own Python) or tox (that uses Python 2.7 and Python 3.2).
Soho is written by Damien Baty and is licensed under the 3-clause BSD license, a copy of which is included in the source and reproduced below: