The Bpluspy-1.0 package from Pypi is excellent. The usual setup loads the software into site-packages. Unfortunately, once installed, Python import statements don't find the software.
The fix is to add a "pth" file in the site-packages directory. The file can be called <anything_you_like>.pth and needs to contain a single line of text BplusPy Python import statements now work fine. This fix applies to Python 2.7 in Fedora 18 and Windows XP. Mary -- http://mail.python.org/mailman/listinfo/python-list