plotting date/value pairs

plot(date_in_some_format, data)

Are the dates strings, python datetime instances, mx datetime
instances, or what?

Here is a thread on python-list you may be interested in

    > I suppose an alternative would be to convert the times to
    > say seconds, create a plot and manually add the actual
    > date/time label (text). This would be tedious but doable.

Currently this is the best way. It would not be too much work to
write a function called plotdate which took, for example, python2.3
datetime instances as the x arg, arbitrary y values, and a datetime
format string as an optional arg, and did all the conversions for you,
set the tick labels, etc... If you want to do it, I think it would be
a nice addition to matplotlib.