egenix-mx-base-3.1.1 is available and is described with "verified and tested all packages with Python 2.6". Patch for ebuild attached. mxBASE.py appears to have changed to egenix_mx_base.py and suggest a change to HOMEPAGE to the actual eGenix.com mx Base page.
Created attachment 179678 [details, diff] egenix-mx-base-3.0.0-to-3.1.1.ebuild.patch
+ 25 Jan 2009; Patrick Lauer <patrick@gentoo.org> + +egenix-mx-base-3.1.1.ebuild: + Bump to 3.1.1, small fixes from Chris Mayo, closes #256321 Thanks Chris, you're doing a great job with python things at the moment!