On Fri, Jun 20, 2003 at 09:35:45PM -0500, Martin Chilvers wrote: > > What I really wanted was this:- > > def addToClass(klass, name, value): > exec('klass.%s = value' % name) What you *really* wanted was: setattr(klass, name, value) Which works just fine on new- and old-style classes. -Andrew.