Ableton, the company I work for, are based in Berlin and are looking for Python devs: http://www.ableton.com/jobs It's a really nice place to work, and the pay is OK for Berlin. Great summary of cost of living and tech scene from maxklein. You can live very cheaply here, if you work at it. Some bars serve a half-litre of beer for 1€, some reasonable apartments can be got for 120€ a month if you can live with coal-fir…
Agree with Mary - Berlin is a fantastic place to live and very affordable in many areas. Great city with a growing start-up scene!