Flexible aggregation for iCalendar feeds (RFC 5545).

The iCalender standard provides a common format for exchanging calendar information. This project aims to provide a library with a clean API for aggregating and processing iCalendar feeds. What you do with that processed information is up to you.

There are a number of existing aggregators, ranging from the closed-source Google Calendar to the open-source elmcity and Calagator. However, I want a library that can work as an iCalendar version of feedparser, and `code for a web-frontend`__ is just dead weight. It turns out that elmcity uses the icalendar parsing library, and there are a number of other pre-existing libraries:

icalendar:

A parsing library for Python 2.6 and 2.7 that spun off from Plone.

RDFCalendar:

A tool for converting between iCalendars and RDF.

Py-Calendar:

A sparsely documented library. There's a lot of code in here, but I think it reproduces a lot of stuff that could be borrowed from the standard library.

pyICSParser:

Another sparsely documented library. Again, there's a lot of code in here, but I think there's too much local code.

PyCal:

A (dead?) package. The PyPI links don't go anywhere.

Pycalendar is packaged with distutils, so you can install it in all the usual ways. Any of the following should work:

$ python setup.py install
$ pip install pycalendar

The only dependency outside Python's standard library is pytz.

Test with nose:

$ nosetests --with-doctest --doctest-tests pycalendar

There is also a example aggregation script that prints aggregate feed to stdout and geographic positions to stderr. Run it with:

$ PYTHONPATH=. test/aggregate.py