Thanks Danielle. "Basically, whatever interface a method, or signal comes from, you pass that as the key to the object." - Is this a dbus-python feature? -A <div class="gmail_quote">On Sun, Jan 17, 2010 at 5:40 PM, Danielle Madeley <<a href="mailto:danielle.madeley@collabora.co.uk">danielle.madeley@collabora.co.uk</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">On Sun, 2010-01-17 at 16:00 -0800, Anand CVR wrote: > Question: Is cm an array or just one ConnectionManager object? The > syntax cm[CONNECTION_MANAGER] seems to suggest that it is an array. > But the GetManager() method seems to return just a ConnectionManager > object. </div>cm is an object, but since D-Bus objects implement multiple interfaces we use the dictionary-style, getattr syntax to be able to specify which D-Bus interface we are making the method call on (this syntax is also used in Python for dictionary keys, which is a little more synonymous with what's going on here). This probably could be explain a little better in the book (it currently gets one sentence): <a href="http://people.collabora.co.uk/%7Edanni/telepathy-book/sect.basics.language-bindings.html#sect.basics.dbus.language-bindings.python" target="_blank">http://people.collabora.co.uk/~danni/telepathy-book/sect.basics.language-bindings.html#sect.basics.dbus.language-bindings.python</a> Basically, whatever interface a method, or signal comes from, you pass that as the key to the object. Hope this clears things up. --d -- Danielle Madeley Software Developer, Collabora Ltd. Melbourne, Australia <a href="http://www.collabora.co.uk" target="_blank">www.collabora.co.uk</a> </blockquote></div>