> > Why are there no module to access serial, parallel or USB port in python. > What about pySerial and pyParallel??? I use pyParallel to control stepper > motors. And if you want USB access, I have done a Python wrapper around libusb that works on Windows, Linux and Mac: http://cvs.sourceforge.net/viewcvs.py/bitpim/bitpim/native/usb/ Roger