How to communicate via USB "port"

[jkn]

Have a look for PyUSB - there are (confusingly) two different packages
called pyUSB. one interfaces to FTDI chips connected to a USB port:

    http://bleyer.org/pyusb/

The other uses libusb to interface to devices generally under windows:

    http://pyusb.berlios.de/


    HTH
    jon N