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croniter provides iteration for datetime object with cron like format

Project Description

Introduction

croniter provides iteration for datetime object with cron like format.

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Website: https://github.com/kiorky/croniter

Usage

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

Develop this package

git clone https://github.com/kiorky/croniter.git
cd croniter
python bootstrap.py -d
bin/buildout -vvvvvvN
bin/test

Make a new release

We use zest.fullreleaser, a great releaser infrastructure.

Do and follow the instructions

bin/fullrelease

Contributors

Thank you to all who have contributed to this project! If you contributed and not listed below please let me know.

  • mrmachine
  • Hinnack
  • shazow
  • kiorky
  • jlsandell
  • mag009
  • djmitche
  • GreatCombinator
  • chris-baynes
  • ipartola
  • yuzawa-san

Changelog

0.3.12 (unreleased)

  • Nothing changed yet.

0.3.11 (2016-01-13)

  • Bug fix: The get_prev API crashed when last day of month token was used. Some essential logic was missing. [Iddo Aviram <iddo.aviram@similarweb.com>]

0.3.10 (2015-11-29)

  • The fuctionality of ‘l’ as day of month was broken, since the month variable was not properly updated [Iddo Aviram <iddo.aviram@similarweb.com>]

0.3.9 (2015-11-19)

  • Don’t use datetime functions python 2.6 doesn’t support [petervtzand]

0.3.8 (2015-06-23)

  • Truncate microseconds by setting to 0 [Corey Wright]

0.3.7 (2015-06-01)

  • 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”

0.3.6 (2015-05-29)

  • 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

0.3.5 (2014-08-01)

  • support for ‘l’ (last day of month)

0.3.4 (2014-01-30)

  • Python 3 compat
  • QA Relase

0.3.3 (2012-09-29)

  • proper packaging
Release History

Release History

This version
History Node

0.3.12.dev0

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