I would like to use the Gen3.dll functions from python. I understand that I can use ctypes to load the dll. I have been able to load the dll but cannot make any sense of how to use it once I have it loaded. I have been trying to understand the ctypes tutorial but I just can't wrap my head around it. I have attached a zip file of everything I have about the dll, including the Gen3.dll. Can someone point me in the right direction. My hopes are that I can automate the functions to provide a test program. The Gen3.dll communicates to a piece of hardware over a USB cable. Its mainly for setting voltages and loads and reading results. -- http://mail.python.org/mailman/listinfo/python-list