calendar (date) iterator?

[Marcus]

Hi,

I'm looking for useful starting points, suggestions, and sample code,
to implement a calendar iterator. Simply, the iterator is seeded with
an initial calendar date, e.g., "03-12-2006", and then subsequent
calls to next return subsequent dates. The seed could be a standard
calendar/datetime object.

iter = calendarIterato r("03-12-2006")
print iter.next()

03-12-2006

A useful extension would be to allow specifiation of iter intervals,
e.g.,

iter = calendarIterato r("03-12-2006 01:00:00", "minutes")
print iter.next()

03-12-2006 01:01:00

Thanks in advance for pointers and suggestions!

[Marcus]

Re: calendar (date) iterator?

Oops-- the iter needs to work better than I do! :)

iter = calendarIterato r("03-12-2006")
print iter.next()

>
03-12-2006

^^^^^^^^^^
03-13-2006

iter = calendarIterato r("03-12-2006 01:00:00", "minutes")
print iter.next()

>
03-12-2006 01:01:00

^^^^^^^^^^
03-13-2006

[skip@pobox.com]

Re: calendar (date) iterator?


MarcusI'm looking for useful starting points, suggestions, and sample
Marcuscode, to implement a calendar iterator.

Have you looked at dateutil?

http://labix.org/python-dateutil

>>from dateutil.rrule import rrule, DAILY
>>from dateutil.parser import parse
>>rule = rrule(DAILY, count=5, dtstart=parse(" 2006-03-12"))
>>for d in rule:

... print d
...
2006-03-12 00:00:00
2006-03-13 00:00:00
2006-03-14 00:00:00
2006-03-15 00:00:00
2006-03-16 00:00:00

Skip

[Marcus]

Re: calendar (date) iterator?

On Mar 6, 3:19 pm, s...@pobox.com wrote:

MarcusI'm looking for useful starting points, suggestions, and sample
Marcuscode, to implement a calendar iterator.
>
Have you looked at dateutil?
>

http://labix.org/python-dateutil

>

>>from dateutil.rrule import rrule, DAILY
>>from dateutil.parser import parse
>>rule = rrule(DAILY, count=5, dtstart=parse(" 2006-03-12"))
>>for d in rule:

... print d
...
2006-03-12 00:00:00
2006-03-13 00:00:00
2006-03-14 00:00:00
2006-03-15 00:00:00
2006-03-16 00:00:00
>
Skip

This is exactly what I was looking for! Thanks so much!!

[Raymond Hettinger]

Re: calendar (date) iterator?

[Marcus]

I'm looking for useful starting points, suggestions, and sample code,
to implement a calendar iterator. Simply, the iterator is seeded with
an initial calendar date, e.g., "03-12-2006", and then subsequent
calls to next return subsequent dates. The seed could be a standard
calendar/datetime object.
>

iter = calendarIterato r("03-12-2006")
print iter.next()

>
03-12-2006

import datetime, time

def calendarIterato r(start, fmt='%m-%d-%Y'):
curr = datetime.date(* time.strptime(s tart, fmt)[:3])
one = datetime.timede lta(1)
while 1:
curr += one
yield curr

if __name__ == '__main__':
iter = calendarIterato r('3-12-2006')
print iter.next()
print iter.next()