The IzSound Python bindings are available as a Python extension module. The compilation of the extension module can be performed by using the standard "DistUtils".
The module is simply named izsound and contains the classes that matches the ones from the IzSound library. The available classes simply match the public APIs from their counterpart classes. You won't be able to develop new IzSound DSP units in Python, but you will be able to plug some of them and process the sound streams.
A new version of the bindings is made available whenever a new version of IzSound is published. The release number of the bindings is the same as the one of the IzSound library.