Re: Publish/Subscribe Lib for Python?
From: Ville Vainio (ville_at_spammers.com)
Date: 02/28/04
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Date: 28 Feb 2004 12:39:12 +0200
>>>>> "Adrian" == Adrian B <borg@swirve.com> writes:
Adrian> Does anyone know of a framework or library that will
Adrian> enable me to use publish/subscribe comms? I want to
Adrian> create a server (using Python) running on a Unix box that
Adrian> will accept client connections (from GUIs built with
Adrian> wxPython) and publish realtime data updates to them. Any
Adrian> advice on where to start?
This is easy w/o any special libraries, if it is indeed all you have
to do.
Some options:
- Clients open TCP socket to server as a "subscription", server dumps
all the changes to all the connected TCP sockets.
- Clients register their host, port addrs with server, server sends
updates to all the subscribed clients in UDP packets.
- UDP broadcasts might work too, haven't tried it.
Or, you could use something like CORBA (omniORB) for more complicated
scenarios.
Googling also revealed:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/81614
But beware: OSE, which that recipe relies on, seems to be licensed
under QPL.
-- Ville Vainio http://tinyurl.com/2prnb
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