I started with JSON and Python 3.x... So there are still some problems. This is now my first important problem I have. I'm looking for a function which can insert (for example) this: { 'Current': '3A', 'Voltage': '11V' } In to here: { 'Measure': [ {'Current': '2A', 'Voltage': '11V'} ] } ...so that my result is: { 'Measure': [ {'Current': '2A', 'Voltage': '11V'}, {'Current': '3A', 'Voltage': '11V'} ] } I only found functions in JavaScript to solve my problem, in Python not. Till now, I saw only a hierarchical creation method for JSON and nothing like a class and instance build up. I hope, there are opportunities to do it. Any ideas? Continue reading...