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

03-12-2006

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

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

03-12-2006 01:01:00

Thanks in advance for pointers and suggestions!

[Marcus]

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

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

03-12-2006

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

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

03-12-2006 01:01:00

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

[skip]

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]

On Mar 6, 3:19 pm, [e-mail] 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]

[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 = calendarIterator("03-12-2006")
print iter.next()

03-12-2006

import datetime, time

def calendarIterator(start, fmt='%m-%d-%Y'):
curr = datetime.date(*time.strptime(start, fmt)[:3])
one = datetime.timedelta(1)
while 1:
curr += one
yield curr

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