croniter provides iteration for datetime object with cron like format
croniter provides iteration for datetime object with cron like format.
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Simple example of usage is followings:
>>> from croniter import croniter >>> from datetime import datetime >>> base = datetime(2010, 1, 25, 4, 46) >>> iter = croniter('*/5 * * * *', base) # every 5 minites >>> print iter.get_next(datetime) # 2010-01-25 04:50:00 >>> print iter.get_next(datetime) # 2010-01-25 04:55:00 >>> print iter.get_next(datetime) # 2010-01-25 05:00:00 >>> >>> iter = croniter('2 4 * * mon,fri', base) # 04:02 on every Monday and Friday >>> print iter.get_next(datetime) # 2010-01-26 04:02:00 >>> print iter.get_next(datetime) # 2010-01-30 04:02:00 >>> print iter.get_next(datetime) # 2010-02-02 04:02:00
All you need to know is constructor and get_next, these signature are following:
>>> def __init__(self, cron_format, start_time=time.time())
croniter iterate along with ‘cron_format’ from ‘start_time’. cron_format is ‘min hour day month day_of_week’, and please refer to http://en.wikipedia.org/wiki/Cron for details.:
>>> def get_next(self, ret_type=float)
get_next return next time in iteration with ‘ret_type’. And ret_type accept only ‘float’ or ‘datetime’.
Now, supported get_prev method. (>= 0.2.0):
>>> base = datetime(2010, 8, 25) >>> itr = croniter('0 0 1 * *', base) >>> print itr.get_prev(datetime) # 2010-08-01 00:00:00 >>> print itr.get_prev(datetime) # 2010-07-01 00:00:00 >>> print itr.get_prev(datetime) # 2010-06-01 00:00:00
git clone https://github.com/kiorky/croniter.git cd croniter python bootstrap.py -d bin/buildout -vvvvvvN bin/test
We use zest.fullreleaser, a great releaser infrastructure.
Do and follow the instructions
Thank you to all who have contributed to this project! If you contributed and not listed below please let me know.
- Nothing changed yet.
- Bug fix: The get_prev API crashed when last day of month token was used. Some essential logic was missing. [Iddo Aviram <email@example.com>]
- The fuctionality of ‘l’ as day of month was broken, since the month variable was not properly updated [Iddo Aviram <firstname.lastname@example.org>]
- Don’t use datetime functions python 2.6 doesn’t support [petervtzand]
- Truncate microseconds by setting to 0 [Corey Wright]
- converting sun in range sun-thu transforms to int 0 which is recognized as empty string; the solution was to convert sun to string “0”
- Fix default behavior when no start_time given Default value for start_time parameter is calculated at module init time rather than call time.
- Fix timezone support and stop depending on the system time zone
- support for ‘l’ (last day of month)
- Python 3 compat
- QA Relase
- proper packaging
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