Manipulating Ableton Live directly using python is tricky as you need to impersonate a proprietary device. However, there's a fairly there's a fairly straightforward Open Sound Control API here: http://livecontrol.q3f.org/ableton-liveapi/liveosc/
Oh nice, thanks. I just wrote OSCPad for Android which I hope becomes the standard OSC controller for Android, I will look at some default templates supporting Ableton Live.
I few years back, I wrote Ruby and C wrappers to communicate with Live via OSC: https://github.com/tassock/ruby_4_live, https://github.com/tassock/ofxAbleton