Op 12-11-13 15:44, JL schreef: > I am actually running python on raspberry pi. The trigger event is a > button-press.
That doesn't help. What does that button-press cause in terms of the OS. Does it cause a signal? Does it produce a number of bytes that can be read from some file like object? Something else? This is not python specific, the answer to those questions is needed no matter what language you use to implement your function. -- Antoon Pardon -- https://mail.python.org/mailman/listinfo/python-list