icemac.recurrence 1.3

Compute recurrences of events

This package provides helper functions to compute recurrences of events in a environment using the Zope Component Architecture (ZCA).

Copyright (c) 2013-2017 Michael Howitz

All Rights Reserved.

This software is subject to the provisions of the Zope Public License, Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. THIS SOFTWARE IS PROVIDED “AS IS” AND ANY AND ALL EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE.

Contents

• Usage

• Hacking

  • Source code

  • Running the tests

• Changelog

  • 1.3 (2017-01-07)

  • 1.2 (2016-04-16)

  • 1.1 (2016-03-01)

  • 1.0.1 (2015-10-22)

  • 1.0.0 (2015-10-13)

Usage

• Register the package at the ZCA via ZCML:

  <include package="icemac.recurrence" />

• Compute recurrences. The example computes the 2nd Tuesday each month.:

  >>> from icemac.recurrence import get_recurrences
  >>> get_recurrences(
  ...     datetime=datetime(2015, 10, 13, 11, 15),
  ...     period='nth weekday of month',
  ...     interval_start=datetime(2015, 1, 1),
  ...     interval_end=datetime(2015, 12, 31))
  [datetime(2015, 10, 13, 11, 15),
   datetime(2015, 11, 10, 11, 15),
   datetime(2015, 12, 8, 11, 15)]

• Supported recurrence periods:

  • daily

  • weekly

  • biweekly

  • nth weekday of month

  • nth weekday every other month

  • nth weekday from end of month

  • nth weekday from end of other month

  • yearly

Hacking

Source code

Get the source code:

$ hg clone https://bitbucket.org/icemac/icemac.recurrence

or fork me on: https://bitbucket.org/icemac/icemac.recurrence

Running the tests

To run the tests yourself call:

$ python2.7 bootstrap.py
$ bin/buildout -n
$ bin/py.test

Changelog

1.3 (2017-01-07)

• Add Manifest and clean up coverage configuration.

1.2 (2016-04-16)

• Fix handling for dates with a timezone which has a daylight saving time (DST): The local time of the recurrence does not change when switching DST though the UTC representation of the time will now change.

1.1 (2016-03-01)

• Shorten the import path of get_recurrences() from icemac.recurrence.recurrence to just icemac.recurrence.

• Refactor tests to use py.test fixtures.

• Fix an off by one month error in the periods nth weekday every other month and nth weekday from end of other month.

• Bring the test coverage to 100 % even in branch coverage.

1.0.1 (2015-10-22)

• Fix broken 1.0.0 release.

1.0.0 (2015-10-13)

• Extract package from icemac.ab.calendar for reuse in other projects.