Hi Daniel, thanks for your reply apologies for the muddled question. What I need to do is the following:
I receive a piece of data from the serial port, determine node and timestamp it. then when I receive the next piece of date form the same node I timestamp it and determine the time difference form the previous reading. Before using Django I was timestamping data with: time_start = time.strftime( '%Y-%m-%d %H:%M:%S' ) and computing time difference with: time_difference = int( time.mktime( time_end ) - time.mktime ( time_start ) ) that didn't work with django because of the format required by DateTimeField() now I'm doing: >>> time_start = datetime.datetime.now() >>> time_start datetime.datetime(2009, 9, 8, 15, 46, 9, 544688) >>> time_end = datetime.datetime.now() >>> time_end datetime.datetime(2009, 9, 8, 15, 46, 32, 353081) >>> time_diff = time_start - time_end >>> time_diff datetime.timedelta(-1, 86377, 191607) >>> print int(time_diff) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: int() argument must be a string or a number, not 'datetime.timedelta' how would you compute the time_diff between the two datetime.datetime objects? Thank you, On Sep 8, 11:18 am, Daniel Roseman <dan...@roseman.org.uk> wrote: > On Sep 8, 10:26 am, Gonzillaaa <gonzill...@gmail.com> wrote: > > > Hello I'm importing data into django and using its admin interface to > > browse and search for data. > > > Each piece of data is timestamped by me at log time. The docs say data > > on a DateTimeField() should be a valid datetime.datetime object but I > > am unclear of format (tuple, string etc..) > > Your question doesn't make sense. As you say, the docs say it should > be a datetime.datetime object. What does format have to do with it? > > > data = InfrarredTimes( loc_id = loc, node_id = node_id, pin_id > > = pin_id, \ > > time_start = time.strftime( '%Y-%m-%d > > %H:%M:%S', time_start ), \ > > time_end = time.strftime( '%Y-%m-%d %H: > > %M:%S', time_end ), \ > > time_difference = time_difference ) > > data.save() > > return True > > > this is not working at the moment. any pointers much appreciated. > > But you've ignored the bit that you quoted above! Why are you using > time instead of datetime? Why are you converting the time into a > string instead of a datetime object? > > time_start = datetime.datetime(2009, 9, 8, 11, 15) > -- > DR. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
