Joe Connellan wrote: > I have opened a serial port and if there is nothing there to be read > os.read() hangs whereas I want it to return "". pySerial? http://www.google.com/search?q=pySerial -- Jirka 'Eagle' Novak registered linux user #173581 E-Mail: eagle at unicode.cz ICQ: 46044619 HomePage: http://seal.unicode.cz/~eagle/