[ANN] python-dateutil 0.1

[Gustavo Niemeyer]

> >What is it?
> >-----------
> >The dateutil module provides powerful extensions to the standard
> >datetime module, available in Python 2.3+.
> >
> .... is there support for business dates ie number of business days
> between two dates etc?

It will be hard to find something you can't do. :-)

How may work days until the end of the month?

   >>> from dateutil.rrule import *
   >>> from datetime import *
   >>> now = datetime.now()
   >>> len(list(rrule(FREQ_DAILY,byweekday=(MO,TU,WE,TH,FR),
                      dtstart=now,until=now.replace(day=31))))
   16

Hummm.. interesting enough, this result is not right. Today should
also be counted in this case. There's a small bug related to
micrseconds handling in the module: since the recurrence is compared
against a date without microseconds, the recurrence is not greater
than the dtstart passed. I haven't got this because all 415 testcases
were using datetime instances without microseconds. Well, we
have 417 now.. ;-)

Here is the right result, with the fix:

   >>> len(list(rrule(FREQ_DAILY,byweekday=(MO,TU,WE,TH,FR),
                      dtstart=now,until=now.replace(day=31))))
   17

Thanks!

-- 
Gustavo Niemeyer
http://niemeyer.net