I am not an expert, but I know that there is a way to take a C++/Qt interface and turn it into a Python interface. So, if Qucs studio uses Qt (which I think it does), that may be a way. There are also ways to call command-line commands from Python, so if there is a way to call different qucs studio functions from the command line, then they can also be called from Python. Again, I am not an expert.
