Attendee without email address.

[jenstroeger]

From the docs and examples it seems that the following is the recommended way of creating an ATTENDEE entry:

>>> attendee = vCalAddress('MAILTO:maxm@example.com')
>>> attendee.params['cn'] = vText('Max Rasmussen')
>>> attendee.params['ROLE'] = vText('REQ-PARTICIPANT')
>>> event.add('attendee', attendee, encode=0)

However, I would need that entry without the email address. The following works:

>>> attendee = vText('')
>>> attendee.params['cn'] = vText('Max Rasmussen')
>>> attendee.params['ROLE'] = vText('REQ-PARTICIPANT')
>>> event.add('attendee', attendee, encode=0)

This generates a valid entry

ATTENDEE;CN="Max Rasmussen";ROLE=REQ-PARTICIPANT:

(note the trailing :) but this seems somewhat clumsy to me. What’s the recommended approach here?

[jenstroeger]

The specification says that:

attendee   = "ATTENDEE" attparam ":" cal-address CRLF

where attparam can be empty, and cal-address is a RFC 1738 URI or other IANA schemed data item. As such, perhaps about: or data: would work, i.e.

>>> attendee = vCalAddress('ABOUT:Max Rasmussen')

This validates, works with Apple Calendar, but the Google Calendar shows no attendee names (see also this forum post).