timedelta is squicking me out

[Roy Smith]

In article <mailman.1679.1317609688.27778.python-list at python.org>,
 Chris Rebert <clp2 at rebertia.com> wrote:

> If something involves Python and nontrivial chronology, then
> mxDateTime is the go-to library. And indeed, it has a RelativeDateTime
> type:
> http://www.egenix.com/products/python/mxBase/mxDateTime/doc/#_Toc293683810

We've been using http://labix.org/python-dateutil, which is pretty good.  
I've never used mxDateTime, so I don't know how the two compare 
head-to-head.