[Rhythmbox-devel] 0.13.2 to 0.13.3 API change for plugins

[ikwyl6 gmail com]

One of my plugins works fine with pre 0.13 rhythmbox and I recently upgraded to 0.13.3.

Upon using 0.13.3 I have found that my plugin does not work on the following line:

shell.get_property("selected_source")

and that I should use shell.get_property("selected_page") instead (http://code.google.com/p/rhythmbox-coverflow-plugin/issues/detail?id=3#c1).

I'd like everyone to use this plugin if they have a pre-0.13.2 version and newer. What is the best way to do this? I'm pretty new to python but how can I get the version of rhythmbox to check the two different versions in if blocks to run if it is pre-0.13.2 and post-0.13.2? 

Alternatively, I see there is a mimic pre-processor (http://code.google.com/p/pypreprocessor/) that may do what I want but how do I check for the version of rhythmbox using this macro, what is the macro name for the rhythmbox version?

Thanks for your help.