Ubuntu
gnome-python-desktop package

python-evolution evolution.ecal has NoneType

Bug #1041785 reported by newbuntu
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
gnome-python-desktop (Ubuntu)
New
Undecided
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Bug Description

With python-evolution installed version 2.32.0+dfsg-2 in quantal, I get the following behavior:

>>> import evolution
>>> print evolution.ecal
None
>>> evolution.ecal.list_calendars()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'NoneType' object has no attribute 'list_calendars'

With previous version 2.32.0-0ubuntu6, I get the expected behavior:
>>> import evolution
>>> print evolution.ecal
>>> evolution.ecal.list_calendars()
<module 'evolution.ecal' from '/usr/lib/python2.7/dist-packages/gtk-2.0/evolution/ecal.so'>
>>> evolution.ecal.list_calendars()
[('Personal', 'local:system') ................ ]

Other similar bugs in launchpad: LP #935883, #865988

Revision history for this message
newbuntu (dsglass) wrote :

Installing python-gnome2 solves this, because it adds the bonobo modules. ecal and ebook cannot be imported in python-evolution's __init__.py without bonobo:

Before installing python-gnome2:

>>> import evolution
>>> print evolution.ecal
None

>>> import ecal
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named bonobo

After installing python-gnome2:

>>> import import evolution
>>> print evolution.ecal
<module 'evolution.ecal' from '/usr/lib/python2.7/dist-packages/gtk-2.0/evolution/ecal.so'>

This would be fixed by adding python-gnome2 to the python-evolution dependencies.

Revision history for this message
newbuntu (dsglass) wrote :

Installing python-gnome2 does not solve all the issues. Although ecal is imported properly, it does not function in every way it should.
For example, this is correct:
>>> calendars = evolution.ecal.list_calendars()
>>> calendars
[('Personal', 'local:system')]

But this is not (calendar does have events in it):
>>> cal = calendars[0]
>>> events = evolution.ecal.open_calendar_source(cal[1], evolution.ecal.CAL_SOURCE_TYPE_EVENT)
libecal-WARNING **: Cannot get cal from factory: GDBus.Error: the name org.gnome.dbus.evolution.Calendar1 is not provided by any .service files
>>> events
[]

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