Missing dependency: pytz

[sphh]

I installed radicale with pip3 install --upgrade radicale. When I run the server, I get this error:

May 02 09:11:33 www python3[12203]: ERROR:root:No module named 'pytz'

After installing pytz with pip3 install pytz, everything works fine.

Please add the pytz package to the dependencies or mention it in the documentation. Thanks.

[Unrud]

pytz is an optional dependency of vobject. It shouldn't be required, when your iCalendar files are valid. Can you provide an example file?

[sphh]

Here is one of my iCalendar files. It was created by Thunderbird/Lightning:

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//PYVOBJECT//NONSGML Version 1//EN
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:STANDARD
DTSTART:20001029T030000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:GMT
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20000326T010000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:BST
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:6b6fbf57-ea05-4717-a62e-24b314bd72af
DTSTART;TZID=Europe/London:20160616T090000
DTEND;TZID=Europe/London:20160616T162000
CATEGORIES:My special category
CREATED:20160413T143427Z
DESCRIPTION:Description
DTSTAMP:20160413T143524Z
LAST-MODIFIED:20160413T143524Z
LOCATION:Secret Location
SUMMARY:STG
TRANSP:OPAQUE
END:VEVENT
END:VCALENDAR

[tomsquest]

In docker-radicale, @silaslenz reported an issue about timezone being required with recurring events and daylight savings. See https://stackoverflow.com/a/42941087

So I decided to merge his PR that adds pytz as a dependency. pytz should correctly parse timezone and solves the problem.

BTW, pytz seems to be a dependency of radicale package in the Debian repository (it is installed as python3-tz I think).

[fcorneli]

I also had to install pytz to be able to upload my calendar ICS file within Radicale.

[dotlambda]

@pbiering Why was this closed?

[pbiering]

can't replicate on a system (EL9) having "pytz" not installed.

[da4089]

Confirmed current vobject can parse the above iCalendar object without pytz installed.