On Sep 6, 12:41 pm, Tim Golden <[EMAIL PROTECTED]> wrote: > > Thanks! I'll try it both ways and see if there's any appreciable > > difference in speed, although since it will be packaged into an > > executable, that may not be an issue anyway. > > > Mike > > I honestly doubt there's any advantage to my approach, certainly > not in terms of speed. It's really only if it happens to suit > your mind better, or take advantage of structures you might > already have in place, etc. > > TJG
For completeness, here's my method for comparison's sake: <code> date_list = [('12/31/2006', '01/13/2007'), ('01/14/2007', '01/27/2007'), ('01/28/2007', '02/10/2007'), ('02/11/2007', '02/24/2007'), ('02/25/2007', '03/10/2007'), ('03/11/2007', '03/24/2007'), ('03/25/2007', '04/07/2007'), ('04/08/2007', '04/21/2007'), ('04/22/2007', '05/05/2007'), ('05/06/2007', '05/19/2007'), ('05/20/2007', '06/02/2007'), ('06/03/2007', '06/16/2007'), ('06/17/2007', '06/30/2007') ] vac_periods = [] found = False for d in date_list: begin = d[0][0:2] end = d[1][0:2] if begin == end and found == False: vac_periods.append(d) found = True else: found = False print vac_periods </code> Isn't it kind of late in the day over there, Tim? Anyway, your method is probably clearer to read whereas mine doesn't require anything to be imported. I didn't even realize there was a calendar module...or maybe I forgot about it. Mike -- http://mail.python.org/mailman/listinfo/python-list