Package: icalendar
Theicalendarpackage is aRFC 5545compatible parser/generator for iCalendar
files.Homepage:https://icalendar.readthedocs.ioCode:https://github.com/collective/icalendarMailing list:https://github.com/collective/icalendar/issuesDependencies:python-dateutilandpytz.Compatible with:Python 2.7 and 3.4+License:BSDQuick GuideToinstallthe package, run:pip install icalendarYou can open an.icsfile and see all the events:>>> import icalendar
>>> path_to_ics_file = "src/icalendar/tests/calendars/example.ics"
>>> with open(path_to_ics_file) as f:
...     calendar = icalendar.Calendar.from_ical(f.read())
>>> for event in calendar.walk('VEVENT'):
...     print(event.get("SUMMARY"))
New Year's Day
Orthodox Christmas
International Women's DayUsing this package, you can also create calendars from scratch or edit existing ones.Versions and Compatibilityicalendaris a critical project used by many. It has been there for a long time and maintaining
long-term compatibility with projects conflicts partially with providing and using the features that
the latest Python versions bring.Since we pour moreeffort into maintaining and developing icalendar,
we split the project into two:Branch 4.xwith maximum compatibility to Python versions2.7and3.4+,PyPy2andPyPy3.Branch masterwith the compatibility to Python versions3.7+andPyPy3.We expect themasterbranch with versions5+receive the latest updates and features,
and the4.xbranch the subset of security and bug fixes only.
We recommend migrating to later Python versions and also providing feedback if you depend on the4.xfeatures.Related projectsicalevents. It is built on top of icalendar and allows you to query iCal files and get the events happening on specific dates. It manages recurrent events as well.recurring-ical-events. Library to query anICalendarobject for events happening at a certain date or within a certain time.x-wr-timezone. Library to makeICalendarobjects and files using the non-standardX-WR-TIMEZONEcompliant with the standard (RFC 5545).You want to help and contribute? Perfect!These are some contribution examplesReporting issues to the bugtracker.Submitting pull requests from a forked icalendar repo.Extending the documentation.Sponsor a Sprint (https://plone.org/events/sprints/whatis).For pull requests, keep this in mindAdd a test which proves your fix and make it pass.Describe your change in CHANGES.rstAdd yourself to the docs/credits.rstDevelopment SetupIf you would like to setup icalendar to
contribute changes, theInstallation Sectionshould help you further.Changelog5.0.11 (2023-11-03)Minor changes:The cli utility now displays start and end datetimes in the user’s local timezone.
Ref: #561
[vimpostor]New features:Added fuzzing harnesses, for integration to OSSFuzz.icalendar releases are deployed to Github releases
Fixes: #563
[jacadzaca]Bug fixes:CATEGORIES field now accepts a string as argument
Ref: #322
[jacadzaca]Multivalue FREEBUSY property is now parsed properly
Ref: #27
[jacadzaca]Compare equality and inequality of calendars more completely
Ref: #570Use non legacy timezone name.
Ref: #567Add some compare functions.
Ref: #568Change OSS Fuzz build script to point to harnesses in fuzzing directory
Ref: #5745.0.10 (2023-09-26)Bug fixes:Component._encode stops ignoring parameters argument on native values, now merges them
Fixes: #557
[zocker1999net]5.0.9 (2023-09-24)Bug fixes:PERIOD values now set the timezone of their start and end. #5565.0.8 (2023-09-18)Minor changes:Update build configuration to build readthedocs. #538No longer run theplone.app.eventtests.Add documentation on how to parse.icsfiles. #152Move pip caching into Python setup action.Check that issue #165 can be closed.Updated about.rst for issue #527AvoidvText.__repr__BytesWarning.Bug fixes:Calendar components are now properly compared
Ref: #550
Fixes: #526
[jacadzaca]5.0.7 (2023-05-29)Bug fixes:to_ical() now accepts RRULE BYDAY values>=10 #5185.0.6 (2023-05-26)Minor changes:Adjusted duration regex5.0.5 (2023-04-13)Minor changes:Added support for BYWEEKDAY in vRecur ref: #268Bug fixes:Fix problem with ORGANIZER in FREE/BUSY #3485.0.4 (2022-12-29)Minor changes:Improved documentation
Ref: #503, #504Bug fixes:vBoolean can now be used as an parameter
Ref: #501
Fixes: #500
[jacadzaca]5.0.3 (2022-11-23)New features:vDDDTypes is hashable #487 #492 [niccokunzmann]Bug fixes:vDDDTypes’ equality also checks the dt attribute #497 #492 [niccokunzmann]5.0.2 (2022-11-03)Minor changes:Refactored cal.py, tools.py and completed remaining minimal refactoring in parser.py. Ref: #481 [pronoym99]Calendar.from_ical no longer throws long errors
Ref: #473
Fixes: #472
[jacadzaca]Make datetime value shorter by removing the value parameter where possible.
Fixes: #318
[jacadzaca], [niccokunzmann]New features:source code in documentation is tested using doctest #445 [niccokunzmann]Bug fixes:broken properties are not added to the parent component
Ref: #471
Fixes: #464
[jacadzaca]5.0.1 (2022-10-22)Minor changes:fixed setuptools deprecation warnings [mgorny]Bug fixes:a well-known timezone timezone prefixed with a/is treated as if the slash wasn’t present
Ref: #467
Fixes: #466
[jacadzaca]5.0.0 (2022-10-17)Minor changes:removed deprecated test checks [tuergeist]Fix: cli does not support DURATION #354 [mamico]Add changelog and contributing to readthedocs documentation #428 [peleccom]fixed small typos #323 [rohnsha0]unittest to parametrized pytest refactoring [jacadzaca]Breaking changes:Require Python 3.7 as minimum Python version.  [maurits] [niccokunzmann]icalendar now takes a ics file directly as an inputicalendar’s CLI utility program’s output is differentDrop Support for Python 3.6. Versions 3.7 - 3.11 are supported and tested.New features:icalendar utility outputs a ‘Duration’ rowicalendar can take multiple ics files as an inputBug fixes:Changed tools.UIDGenerator instance methods to static methods
Ref: #345
[spralja]proper handling of datetime objects withtzinfogenerated through zoneinfo.ZoneInfo.
Ref: #334
Fixes: #333
[tobixen]Timestamps in UTC does not need tzid
Ref: #338
Fixes: #335
[tobixen]add__eq__toicalendar.prop.vDDDTypes#391 [jacadzaca]Refactor deprecated unittest aliases for Python 3.11 compatibility #330 [tirkarthi]5.0.0a1 (2022-07-11)Breaking changes:Drop support for Python 3.4, 3.5 and PyPy2.  [maurits]New features:Document development setup
Ref: #358
[niccokunzmann]Bug fixes:Test with GitHub Actions.  [maurits]4.1.0 (2022-07-11)New features:No longer test on Python 3.4, 3.5 and PyPy2, because we cannot get it to work.
Technically it should still work, it is just no longer tested.
Do not expect much development on branch 4.x anymore.
The master branch will be for the remaining Python versions that we support.
[maurits]Bug fixes:Test with GitHub Actions.  [maurits]4.0.9 (2021-10-16)Bug fixes:Fix vCategories for correct en/de coding.
[thet]vDuration property value: Fix changing duration sign after multipleto_icalcalls.
Ref: #320
Fixes: #319
[barlik]4.0.8 (2021-10-07)Bug fixes:Support added for Python 3.9 and 3.10 (no code changes needed).Replace bare ‘except:’ with ‘except Exception:’ (#281)4.0.7 (2020-09-07)Bug fixes:fixed rrule handling, re-enabled test_create_america_new_york()4.0.6 (2020-05-06)Bug fixes:UsevTextas default type, when convert recurrence definition to ical string. [kam193]4.0.5 (2020-03-21)Bug fixes:Fixed a docs issue related to building on Read the Docs [davidfischer]4.0.4 (2019-11-25)Bug fixes:Reduce Hypothesis iterations to speed up testing, allowing PRs to pass
[UniversalSuperBox]4.0.3 (2018-10-10)Bug fixes:Categories are comma separated not 1 per line #265. [cleder]mark test with mixed timezoneaware and naive datetimes as an expected failure. [cleder]4.0.2 (2018-06-20)Bug fixes:Update all pypi.python.org URLs to pypi.org
[jon.dufresne]4.0.1 (2018-02-11)Added rudimentary command line interface.
[jfjlaros]Readme, setup and travis updates.
[jdufresne, PabloCastellano]4.0.0 (2017-11-08)Breaking changes:Drop support for Python 2.6 and 3.3.3.12 (2017-11-07)New features:Accept Windows timezone identifiers as valid. #242 [geier]Bug fixes:Fix ResourceWarnings in setup.py when Python warnings are enabled. #244 [jdufresne]Fix invalid escape sequences in string and bytes literals. #245 [jdufresne]Include license file in the generated wheel package. #243 [jdufresne]Fix non-ASCII TZID and TZNAME parameter handling. #238 [clivest]Docs: update install instructions. #240 [Ekran]3.11.7 (2017-08-27)New features:added vUTCOffset.ignore_exceptions to allow surpressing of failed TZOFFSET
parsing (for now this ignores the check for offsets > 24h) [geier]3.11.6 (2017-08-04)Bug fixes:Fix VTIMEZONEs including RDATEs #234.  [geier]3.11.5 (2017-07-03)Bug fixes:added an assertion that VTIMEZONE sub-components’ DTSTART must be of type
DATETIME [geier]Fix handling of VTIMEZONEs with subcomponents with the same DTSTARTs and
OFFSETs but which are of different types  [geier]3.11.4 (2017-05-10)Bug fixes:Don’t break on parameter values which contain equal signs, e.g. base64 encoded
binary data [geier]Fix handling of VTIMEZONEs with subcomponents with the same DTSTARTs.
[geier]3.11.3 (2017-02-15)Bug fixes:Removedsetuptoolsas a dependency as it was only required by setup.py
and not by the package.Don’t split content lines on the unicodeLINE SEPARATORcharacter\u2028but only onCRLForLF.3.11.2 (2017-01-12)Bug fixes:Run tests with python 3.5 and 3.6.
[geier]Allow tests failing with pypy3 on travis.ci.
[geier]3.11.1 (2016-12-19)Bug fixes:Encode error message before adding it to the stack of collected error messages.3.11 (2016-11-18)Fixes:Successfully test with pypy and pypy3.  [gforcada]Minor documentation update.  [tpltnt]3.10 (2016-05-26)New:Updated components description to better comply with RFC 5545.
Refs #183.
[stlaz]Added PERIOD value type to date types.
Also fixes incompatibilities described in #184.
Refs #189.
[stlaz]Fixes:Fix testsuite for use withdateutil>=2.5.
Refs #195.
[untitaker]Reintroduce cal.Component.is_broken that was removed with 3.9.2.
Refs #185.
[geier]3.9.2 (2016-02-05)New:Definedtest_suitein setup.py.
Now tests can be run viapython setup.py test.
[geier]Fixes:Fixed cal.Component.from_ical() representing an unknown component as one of the known.
[stlaz]Fixed possible IndexError exception during parsing of an ical string.
[stlaz]When doing a boolean test onicalendar.cal.Component, always returnTrue.
Before it was returningFalsedue to CaselessDict, if it didn’t contain any items.
[stlaz]Fixed date-time being recognized as date or time during parsing.
Added better error handling to parsing from ical strings.
[stlaz]Added __version__ attribute to init.py.
[TomTry]Documentation fixes.
[TomTry]Pep 8, UTF 8 headers, dict/list calls to literals.
[thet]3.9.1 (2015-09-08)FixvPeriod.__repr__.
[spacekpe]Improve foldline() performance. This improves the foldline performance,
especially for large strings like base64-encoded inline attachements. In some
cases (1MB string) from 7 Minutes to less than 20ms for ASCII data and 500ms
for non-ASCII data. Ref: #163.
[emfree]3.9.0 (2015-03-24)Creating timezone objects from VTIMEZONE components.
[geier]Makepython-dateutila dependency.
[geier]Made RRULE tolerant of trailing semicolons.
[sleeper]Documentation fixes.
[t-8ch, thet]3.8.4 (2014-11-01)Add missing BYWEEKNO to recurrence rules.
[russkel]3.8.3 (2014-08-26)PERCENT property in VTODO renamed to PERCENT-COMPLETE, according to RFC5545.
[thomascube]3.8.2 (2014-07-22)Exclude editor backup files from egg distributions. Fixes #144.
[thet]3.8.1 (2014-07-17)The representation of CaselessDicts in 3.8 changed the name attribute of
Components and therefore broke the external API. This has been fixed.
[untitaker]3.8 (2014-07-17)Allow dots in property names (Needed for vCard compatibility). Refs #143.
[untitaker]Change class representation for CaselessDict objects to always include the
class name or the class’ name attribute, if available. Also show
subcomponents for Component objects.
[thet]Don’t use data_encode for CaselessDict class representation but use dict’s
__repr__ method.
[t-8ch]Handle parameters with multiple values, which is needed for vCard 3.0.
Refs #142.
[t-8ch]3.7 (2014-06-02)For components withignore_exceptionsset toTrue, mark unparseable
lines as broken instead rising aValueError.VEVENTcomponents haveignore_exceptionsset toTrueby default. Ref #131. Fixes #104.
[jkiang13]Makepython-dateutila soft-dependency.
[boltnev]Add optionalsortedparameter toComponent.to_ical. Setting it to
false allows the user to preserve the original property and parameter order.
Ref #136. Fixes #133.
[untitaker]Fix tests for latestpytz. Don’t settzinfodirectly on datetime
objects, but use pytz’slocalizefunction. Ref #138.
[untitaker, thet]Remove incorrect use of __all__. We don’t encourage usingfrom package import *imports. Fixes #129.
[eric-wieser]3.6.2 (2014-04-05)Pep8 and cleanup.
[lasudry]3.6.1 (2014-01-13)Open text files referenced by setup.py as utf-8, no matter what the locale
settings are set to. Fixes #122.
[sochotnicky]Add tox.ini to source tarball, which simplifies testing for in distributions.
[sochotnicky]3.6 (2014-01-06)Python3 (3.3+) + Python 2 (2.6+) support [geier]Made sure to_ical() always returns bytes [geier]Support adding lists to a component property, which value already was a list
and remove the Component.set method, which was only used by the add method.
[thet]Remove ability to add property parameters via a value’s params attribute when
adding via cal.add (that was only possible for custom value objects and makes
up a strange API), but support a parameter attribute on cal.add’s method
signature to pass a dictionary with property parameter key/value pairs.
Fixes #116.
[thet]Backport some of Regebro’s changes from his regebro-refactor branch.
[thet]Raise explicit error on another malformed content line case.
[hajdbo]Correctly parse datetime component property values with timezone information
when parsed from ical strings.
[untitaker]3.5 (2013-07-03)Let to_unicode be more graceful for non-unicode strings, as like CMFPlone’s
safe_unicode does it.
[thet]3.4 (2013-04-24)Switch to unicode internally. This should fix all en/decoding errors.
[thet]Support for non-ascii parameter values. Fixes #88.
[warvariuc]Added functions to transform chars in string with ‘' + any of r’,;:’ chars
into ‘%{:02X}’ form to avoid splitting on chars escaped with ‘'.
[warvariuc]Allow seconds in vUTCOffset properties. Fixes #55.
[thet]LetComponent.decodebetter handle vRecur and vDDDLists properties.
Fixes #70.
[thet]Don’t letComponent.addre-encode already encoded values. This simplifies
the API, since there is no need explicitly passencode=False. Fixes #82.
[thet]Rename tzinfo_from_dt to tzid_from_dt, which is what it does.
[thet]More support for dateutil parsed tzinfo objects. Fixes #89.
[leo-naeka]Remove python-dateutil version fix at all. Current python-dateutil has Py3
and Py2 compatibility.
[thet]Declare the required python-dateutil dependency in setup.py. Fixes #90.
[kleink]Raise test coverage.
[thet]Remove interfaces module, as it is unused.
[thet]Removetest_doctests.py, test suite already created properly intest_icalendar.py.
[rnix]Transformed doctests into unittests, Test fixes and cleanup.
[warvariuc]3.3 (2013-02-08)Drop support for Python < 2.6.
[thet]Allow vGeo to be instantiated with list and not only tuples of geo
coordinates. Fixes #83.
[thet]Don’t force to pass a list to vDDDLists and allow setting individual RDATE
and EXDATE values without having to wrap them in a list.
[thet]Fix encoding function to allow setting RDATE and EXDATE values and not to
have bypass encoding with an icalendar property.
[thet]Allow setting of timezone for vDDDLists and support timezone properties for
RDATE and EXDATE component properties.
[thet]Move setting of TZID properties to vDDDTypes, where it belongs to.
[thet]Use @staticmethod decorator instead of wrapper function.
[warvariuc, thet]Extend quoting of parameter values to all of those characters: “,;: â’”.
This fixes an outlook incompatibility with some characters. Fixes: #79,
Fixes: #81.
[warvariuc]Define VTIMETZONE subcomponents STANDARD and DAYLIGHT for RFC5545 compliance.
[thet]3.2 (2012-11-27)Documentation file layout restructuring.
[thet]Fix time support. vTime events can be instantiated with a datetime.time
object, and do not inherit from datetime.time itself.
[rdunklau]Correctly handle tzinfo objects parsed with dateutil. Fixes #77.
[warvariuc, thet]Text values are escaped correclty. Fixes #74.
[warvariuc]Returned old folding algorithm, as the current implementation fails in some
cases. Fixes #72, Fixes #73.
[warvariuc]Supports to_ical() on date/time properties for dates prior to 1900.
[cdevienne]3.1 (2012-09-05)Make sure parameters to certain properties propagate to the ical output.
[kanarip]Re-include doctests.
[rnix]Ensure correct datatype at instance creation time inprop.vCalAddressandprop.vText.
[rnix]Apply TZID parameter to datetimes parsed from RECURRENCE-ID
[dbstovall]Localize datetimes for timezones to avoid DST transition errors.
[dbstovall]Allow UTC-OFFSET property value data types in seconds, which follows RFC5545
specification.
[nikolaeff]Remove utctz and normalized_timezone methods to simplify the codebase. The
methods were too tiny to be useful and just used at one place.
[thet]When using Component.add() to add icalendar properties, force a value
conversion to UTC for CREATED, DTSTART and LAST-MODIFIED. The RFC expects UTC
for those properties.
[thet]Removed last occurrences of old API (from_string).
[Rembane]Add ‘recursive’ argument to property_items() to switch recursive listing.
For example when parsing a text/calendar text including multiple components
(e.g. a VCALENDAR with 5 VEVENTs), the previous situation required us to look
over all properties in VEVENTs even if we just want the properties under the
VCALENDAR component (VERSION, PRODID, CALSCALE, METHOD).
[dmikurube]All unit tests fixed.
[mikaelfrykholm]3.0.1b2 (2012-03-01)For all TZID parameters in DATE-TIME properties, use timezone identifiers
(e.g. Europe/Vienna) instead of timezone names (e.g. CET), as required by
RFC5545. Timezone names are used together with timezone identifiers in the
Timezone components.
[thet]Timezone parsing, issues and test fixes.
[mikaelfrykholm, garbas, tgecho]Since we use pytz for timezones, also use UTC tzinfo object from the pytz
library instead of own implementation.
[thet]3.0.1b1 (2012-02-24)Update Release information.
[thet]3.0Add API for proper Timezone support. Allow creating ical DATE-TIME strings
with timezone information from Python datetimes with pytz based timezone
information and vice versa.
[thet]Unify API to only use to_ical and from_ical and remove string casting as a
requirement for Python 3 compatibility:
New: to_ical.
Old: ical, string, as_string and string casting via __str__ and str.
New: from_ical.
Old: from_string.
[thet]2.2 (2011-08-24)migration tohttps://github.com/collective/icalendarusing svn2git preserving
tags, branches and authors.
[garbas]using tox for testing on python 2.4, 2.5, 2.6, 2.6.
[garbas]fixed tests so they pass also under python 2.7.
[garbas]running tests onhttps://jenkins.plone.org/job/icalendar(only 2.6 for now)
with some other metrics (pylint, clonedigger, coverage).
[garbas]review and merge changes fromhttps://github.com/cozi/icalendarfork.
[garbas]created sphinx documentation and started documenting development and goals.
[garbas]hook out github repository tohttps://readthedocs.orgservice so sphinx
documentation is generated on each commit (for master). Documentation can be
visible on:https://icalendar.readthedocs.io/en/latest/[garbas]2.1 (2009-12-14)Fix deprecation warnings aboutobject.__init__taking no parameters.Set the VALUE parameter correctly for date values.Long binary data would be base64 encoded with newlines, which made the
iCalendar files incorrect. (This still needs testing).Correctly handle content lines which include newlines.2.0.1 (2008-07-11)Made the tests run under Python 2.5+Renamed the UTC class to Utc, so it would not clash with the UTC object,
since that rendered the UTC object unpicklable.2.0 (2008-07-11)EXDATE and RDATE now returns a vDDDLists object, which contains a list
of vDDDTypes objects. This is do that EXDATE and RDATE can contain
lists of dates, as per RFC.*Note!*: This change is incompatible with earlier behavior, so if you
handle EXDATE and RDATE you will need to update your code.When createing a vDuration of -5 hours (which in itself is nonsensical),
the ical output of that was -P1DT19H, which is correct, but ugly. Now
it’s ‘-PT5H’, which is prettier.1.2 (2006-11-25)Fixed a string index out of range error in the new folding code.1.1 (2006-11-23)Fixed a bug in caselessdicts popitem. (thanks to Michael Smith
<msmith@fluendo.com>)The RFC 2445 was a bit unclear on how to handle line folding when it
happened to be in the middle of a UTF-8 character. This has been clarified
in the following discussion:http://lists.osafoundation.org/pipermail/ietf-calsify/2006-August/001126.htmlAnd this is now implemented in iCalendar. It will not fold in the middle of
a UTF-8 character, but may fold in the middle of a UTF-8 composing character
sequence.1.0 (2006-08-03)make get_inline and set_inline support non ascii codes.Added support for creating a python egg distribution.0.11 (2005-11-08)Changed component .from_string to use types_factory instead of hardcoding
entries to ‘inline’Changed UTC tzinfo to a singleton so the same one is used everywhereMade the parser more strict by using regular expressions for key name,
param name and quoted/unquoted safe char as per the RFCAdded some tests from the schooltool icalendar parser for better coverageBe more forgiving on the regex for folding linesAllow for multiple top-level components on .from_stringFix vWeekdays, wasn’t accepting relative param (eg: -3SA vs -SA)vDDDTypes didn’t accept negative period (eg: -P30M)‘N’ is also acceptable as newline on content lines, per RFC0.10 (2005-04-28)moved code to codespeak.net subversion.reorganized package structure so that source code is under ‘src’ directory.
Non-package files remain in distribution root.redid doc/.py files as doc/.txt, using more modern doctest. Before they
were .py files with big docstrings.added test.py testrunner, and tests/test_icalendar.py that picks up all
doctests in source code and doc directory, and runs them, when typing:python2.3 test.pyrenamed iCalendar to lower case package name, lowercased, de-pluralized and
shorted module names, which are mostly implementation detail.changed tests so they generate .ics files in a temp directory, not in the
structure itself.LicenseCopyright (c) 2012-2013, Plone Foundation
All rights reserved.Redistribution and use in source and binary forms, with or without
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