bus = dbus.SystemBus()
remote_object = bus.get_object(”org.freedesktop.DBus”, “/org/freedesktop/DBus”)
iface = dbus.Interface(remote_object, “org.freedesktop.DBus”)

iface.method()

I need to interface with some code using DBus, and I’d ideally like to use Python for this task. Sadly I don’t see a documented API and the examples you speak of in CVS don’t quite tell me how to do what I am trying to do.

Basically the sample python client code provided by the third party component uses:

remote_bus=dbus.SystemBus()
remote_bus.get_service(’org.freedesktop.DBus’)

But the interpreter complains about get_service not being a method on SystemBus.

Using python 2.4.1 and dbus 0.33 on FC4…

Any ideas/pointers?

Thanks,
Manik

Similarly, the previous []-before-def syntax was inspired by Microsoft’s C# language. But C# also limits the expressivity of what it calls “attributes”. They are similar to Python decorators in the sense that both involve what appear to be expressions as opposed to statements; however, .Net attributes really are non-statements; they do not modify their referents so much as attach themselves to them. Microsoft often calls attributes “declarative” as opposed to “imperative” 19. Further, they are required to be commutative 20, a requirement which would cripple many uses of Python decorators 21.

Java annotations are somewhat similar but a bit more different than C# attributes:

The current @-decorator syntax is inspired by Java’s “annotations”. In fact, the authors of the Java annotation feature state that the @-symbol is a mnemonic for annotation type. However, Python decorators differ significantly from Java’s use of that syntax. Most importantly, “annotations” are limited to attributes and other non-transformative operations in Java. From the JDK 1.5 specification:

“This facility allows developers to define custom annotation types and to annotate fields, methods, classes, and other program elements with annotations corresponding to these types. These annotations do not directly affect the semantics of a program.” 18 (emphasis added)

Java annotations provide semantic transparency; the referent is not modified. One may use “interceptor” functions like @trace, but the annotated function is not wrapped. In Java, function transformations continue to be provided by keywords such as static.