[Distutils] specifying a requirement on multiple setuptools extras

Hi All, Say I have a package, mortar, that offers multiple extras options for different data storage mechanisms, eg: sqlalchemy, zodb, simpledb If I want to use this in a project and want both the sqlalchemy and zodb backends, how do I spell this? easy_install mortar[sqlalchemy,zodb] easy_install mortar[sqlalchemy] easy_install mortar[zodb] ...or something else? cheers, Chris -- Simplistix - Content Management, Batch Processing & Python Consulting - http://www.simplistix.co.uk