On Sat, Nov 29, 2003 at 08:26:50PM -0800, John Benson wrote:
So, select might not yet work on Windows serial ports as well as sockets.
That's correct. Windows select is from the Winsock library, and only works with sockets.
This is also a subject of interest to me, but all I can think of is handling the sockets via select() and polling periodically for data on the serial port using callLater() and some win32 calls. Maybe the win32 serial port handling could even be wrapped in a 'waitable object' as described above for use with the Python select() call.
Thankfully, pySerial has already taken care of the details of cross-platform serial-port access (apparently, I've never used it):
I recall reading somewhere that the twisted framework has the ability to handle serial communications in connection with Global Positioning System device interaction, but don't have any information about it. I'm going to post this to the twisted mailing list :
Question for twisted folks: How can I add serial Windows serial port communications as a twisted protocol? Please cross-post back to the python-list.
Twisted uses pySerial, so the platform you're running Twisted on shouldn't matter. There are some examples in the doc/examples directory of Twisted that use the serial port:
mouse.py -- example using MouseMan protocol with the SerialPort transport gpsfix.py -- example using the SerialPort transport and the NMEA 0183 and Rockwell Zodiac GPS protocols to display fix data as it is received from the device.