Hello Alvin,

Thanks, MSNP8 should be enough for a chat bot. I'll have a look at the twisted.im module, it seems to contain a basic multi-protocol chat client.

I had another question about the Jabber example (xmpp_client.py) in Twisted words. When I quit the application with Ctrl+C, it throws an exception:

Disconnected. Traceback (most recent call last): File "/usr/lib/python2.5/site-packages/twisted/internet/posixbase.py", line 228, in mainLoop self.runUntilCurrent() File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 561, in runUntilCurrent call.func(*call.args, **call.kw) File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 414, in _continueSystemEvent callable(*args, **kw) File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 375, in disconnectAll failure.Failure(main.CONNECTION_LOST)) --- <exception caught here> --- File "/usr/lib/python2.5/site-packages/twisted/python/log.py", line 48, in callWithLogger return callWithContext({"system": lp}, func, *args, **kw) File "/usr/lib/python2.5/site-packages/twisted/python/log.py", line 33, in callWithContext return context.call({ILogContext: newCtx}, func, *args, **kw) File "/usr/lib/python2.5/site-packages/twisted/python/context.py", line 59, in callWithContext return self.currentContext().callWithContext(ctx, func, *args, **kw) File "/usr/lib/python2.5/site-packages/twisted/python/context.py", line 37, in callWithContext return func(*args,**kw) File "/usr/lib/python2.5/site-packages/twisted/internet/tcp.py", line 576, in connectionLost Connection.connectionLost(self, reason) File "/usr/lib/python2.5/site-packages/twisted/internet/tcp.py", line 416, in connectionLost protocol.connectionLost(reason) File "/usr/lib/python2.5/site-packages/twisted/words/xish/xmlstream.py", line 82, in connectionLost self.dispatch(self, STREAM_END_EVENT) File "/usr/lib/python2.5/site-packages/twisted/words/xish/utility.py", line 227, in dispatch self._eventObservers[(priority, event)].callback(object) File "/usr/lib/python2.5/site-packages/twisted/words/xish/utility.py", line 37, in callback methodwrapper(*args, **kwargs) File "/usr/lib/python2.5/site-packages/twisted/words/xish/utility.py", line 21, in __call__ self.method(*nargs, **nkwargs) File "xmpp_client.py", line 58, in disconnected reactor.stop() File "/usr/lib/python2.5/site-packages/twisted/internet/base.py", line 342, in stop raise RuntimeError, "can't stop reactor that isn't running" exceptions.RuntimeError: can't stop reactor that isn't running

Is there any way to modify this example so that it stops gracefully when Ctrl+C is pressed? Embedding the main script code in a try-except statement that catches KeyboardInterrupt doesn't help since Twisted seems to catch all exceptions itself.

I read about deferred's and errbacks, but I don't know where to add an errback to in the XMPP example. To the client? The XmlStream? The reactor?

Any pointers would be greatly appreciated ...

Thanks!

-- Jo

On Mon, May 26, 2008 at 2:37 PM, Alvin Delagon adelagon@gmail.com wrote:

There's a twisted MSNP8 (or is it MSNP9) implementation. It's experimental but it works. I managed to write an MSN gateway for XMPP deriving most of the codes from it.

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Alvin Delagon

On Mon, May 26, 2008 at 6:49 PM, Jo Vermeulen jo.vermeulen@gmail.com wrote:

...

Hello,

I am trying to create a chat bot that can work over both the XMPP and the MSN protocol using Twisted words. I have a couple of questions as a Twisted newbie :-)

Is there any documentation on how to create a protocol-agnostic chatbot with Twisted words? Or are there applications using Twisted words that offer multiple front-ends?

I have a XMPP version working, but had some problems finding my way around a few features. I don't know how to get a list of contacts, or initiatiate a group chat. Even if I succeed in doing this, would it be possible to generalize this for both XMPP and MSN?

Finally, I was wondering how mature Twisted words is. It seems to work well for XMPP, but how mature is the MSN support? Are there other libraries I could consider, or is it possible to generalize other libraries within Twisted?

Thanks in advance!

-- Jo Vermeulen

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On Mon, May 26, 2008 at 6:02 PM, Ralph Meijer twisted@ralphm.ik.nu wrote:

On Mon, 2008-05-26 at 15:03 +0200, Jo Vermeulen wrote:

...

[..]

I had another question about the Jabber example (xmpp_client.py) in Twisted words. When I quit the application with Ctrl+C, it throws an exception:

[..]

I haven't seen that behavior before, but I can confirm this happens. I poked around a bit with the example. It seems that the socket is closed before its factory is shut down. It might be that the reactor shutdown procedure has changed, so I think this behavior is the result of a bug, either in the example or somewhere else. It needs more investigation, so it would be nice if you could file a ticket for it.

Done: http://twistedmatrix.com/trac/ticket/3270

...

Is there any way to modify this example so that it stops gracefully when Ctrl+C is pressed? Embedding the main script code in a try-except statement that catches KeyboardInterrupt doesn't help since Twisted seems to catch all exceptions itself.

I don't know of a good solution, at the moment. If the above bug gets resolved, you shouldn't need to do anything beyond that.

OK thanks!

-- Jo