I have figured out how to program signal processing blocks in c++, and get them to run in python, but I am looking at creating a source that will read from a wx slider bar and scale that value and pass it into my other signal processing blocks. So I need to set up a source in python, but I am unsure how to do this, since all of the examples (that I can find) were done in c++. Can someone point me in the right direction?