debus: a non-reference DBus implementation

Summary

This is an attempt to make a nice-to-use asynchronous DBus implementation without any extra dependencies and magic.

Why?

There are two main issues with using "the" dbus implementation with python:

• magical dependencies ("what is import gi and how do I get it to work on my embedded device?")
• foreign event loop mandatory for certain operations*, while in the end we only need ot read/write to a socket

* AFAIR you can do synchronous calls wihtout the event loop, but definitely can't subscribe to signals without it

Dependecies

debus uses cython. Thus, you need it (and a working build environment for C) to build debus.

At runtime no extra dependencies (except python itself) is needed.

Known limitations

• Only little-endian messages are supported so far
• Methods have to return a tuple to match dbus idea of multiple "out" parameters