Ubuntu
libappindicator package

Impossible to inherit a class from AppIndicator*.Indicator in Python (gir)

Bug #730528 reported by Artem Popov
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
libappindicator
Confirmed
Low
Unassigned
libappindicator (Ubuntu)
Confirmed
Low
Unassigned

Bug Description

In Python it's currently impossible to inherit a class from AppIndicator*.Indicator. The following sample code leads to segfault:

from gi.repository import AppIndicator3

class MyIndicator(AppIndicator3.Indicator):
    def __init__(self):
        AppIndicator3.Indicator.__init__(self)
        #also happens with self.__gobject_init__()

i = MyIndicator()

Artem Popov (artfwo)
summary: Impossible to inherit a class from AppIndicator*.Indicator in Python
+ (gir)
Revision history for this message
Martin Pitt (pitti) wrote :

I don't think that has got anything to do with the subclassing; you cannot currently instantiate an appindicator object:

$ python -c 'from gi.repository import AppIndicator3; i = AppIndicator3.Indicator(); print i'

(process:29515): Gtk-CRITICAL **: gtk_icon_theme_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
-c:1: Warning: invalid (NULL) pointer instance
-c:1: Warning: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
Speicherzugriffsfehler (Speicherabzug geschrieben)

Revision history for this message
Artem Popov (artfwo) wrote :

Martin, this code works for me on a fully updated Natty system:

from gi.repository import AppIndicator3, Gtk

i = AppIndicator3.Indicator.new("testindicator", "indicator-messages", AppIndicator3.IndicatorCategory.HARDWARE)
i.set_status(AppIndicator3.IndicatorStatus.ACTIVE)
i.set_menu(Gtk.Menu())

Gtk.main()

Revision history for this message
Artem Popov (artfwo) wrote :

Oh yes, constructor does not work, you have to use Indicator.new()

Sebastien Bacher (seb128)
Changed in libappindicator (Ubuntu):
assignee: nobody → Ken VanDine (ken-vandine)
importance: Undecided → Low
Changed in libappindicator:
importance: Undecided → Low
Ted Gould (ted)
Changed in libappindicator:
status: New → Confirmed
Changed in libappindicator (Ubuntu):
status: New → Confirmed
Ken VanDine (ken-vandine)
Changed in libappindicator (Ubuntu):
milestone: none → ubuntu-11.04
Kate Stewart (kate.stewart)
Changed in libappindicator (Ubuntu):
milestone: ubuntu-11.04 → natty-updates
Sebastien Bacher (seb128)
Changed in libappindicator (Ubuntu):
milestone: natty-updates → none
Ken VanDine (ken-vandine)
Changed in libappindicator (Ubuntu):
assignee: Ken VanDine (ken-vandine) → nobody
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