Checking for data on a serial port

Erno Kuusela erno at iki.fi
Wed Mar 29 00:34:37 CEST 2000


>>>>> "Jay" == Jay Freeman <jayfreeman at earthlink.net> writes:

    Jay> Howdy, I'm probably missing something obvious in the docs,
    Jay> but I'd like to have a way to see if there is any data
    Jay> waiting to be read on a serial port.

use the select module.

you might want to open the serial ports in unbuffered mode, or use the
low level os.read/os.write syscalls, so that buffering doesn't get in
the way.

  -- erno



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