Mailman 3 May 2009 - Twisted

[Twisted-Python] offer of adding IRCD support to words.protocol.irc
by Patrick Thomson June 1, 2009

June 1, 2009

I'm currently about to embark on building something from twisted which has an IRCD, and I have found the capacity to run IRC servers is lacking, in contrast to the excellent client/bot backend code. I've found several other twisted projects already implement an IRCD, and whilst I'm reinventing the wheel, I may as well go the extra mile to get my code suitable for inclusion. I wouldn't be asking for a lot, just some general guidelines (e.g. I know my patch probably won't be accepted without test code as well). -- Patrick

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com May 31, 2009

May 31, 2009

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[Twisted-Python] Twisted for Nokia S60 Platform
by Mustafa Sakalsiz May 30, 2009

May 30, 2009

Hi all, I am wondering if somebody has tried to run the twisted on nokia's s60 platform. I am not expecting twisted operate with full functionality, but I will be glad to hear about it if there are some efforts. I also wanted to be involved in such an effort. S60 platform already supports python 2.5.4 core and openssl. Thanks in advance. Saki

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Re: [Twisted-Python] Twisted for Nokia S60 Platform
by glyph＠divmod.com May 30, 2009

May 30, 2009

On 08:24 am, sakalsiz(a)gmail.com wrote: >I am wondering if somebody has tried to run the twisted on nokia's s60 >platform. I am not expecting twisted operate with full functionality, >but I >will be glad to hear about it if there are some efforts. I also wanted >to be >involved in such an effort. > >S60 platform already supports python 2.5.4 core and openssl. Unfortunately I haven't done this, but please let us know if you manage to succeed! It would be cool to have a buildbot for S60 support, somehow. Personally, I have run the very basic core of Twisted on PythonCE, which is a similarly limited environment, and it worked pretty well.

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[Twisted-Python] ESMTP extension
by Nicolas Toper May 30, 2009

May 30, 2009

Hi, I am using SMTP-AUTH with Twisted. I have extended smtp.mail to handle LOGIN and PLAIN on the server side (the version I have handles only CRAM-MD5). I am adding currently DIGEST-MD5. Do you want a patch? If yes, what is the best way to submit a patch (I could not find it on the wiki)? Best, Nicolas http://www.deviant-abstraction.net

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Re: [Twisted-Python] reactor.stop() and deferToThead
by Thomas Jakobsen May 29, 2009

May 29, 2009

Thanks for the quick answers! Explicitly making stuff2() return as soon as it discovers that the reactor has stopped solves the problem. Regards, Thomas

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[Twisted-Python] reactor.stop() and deferToThead
by Thomas Jakobsen May 29, 2009

May 29, 2009

Hi It seems that things being deferredToThread continue to run even though reactor.stop() is called. Output from the example below is: stuff1 finished; stopping reactor stuff2 finished Is there a way to abort the remaining execution of stuff2 in this case? It would be handy if, say, some exception happens in in stuff1 that causes the execution of the remaining stuff2 to be meaningless. Kind regards, Thomas --------------------------------------------- from twisted.internet.threads import deferToThread from twisted.internet import reactor def stuff1(): time.sleep(2) print "stuff1 finished; stopping reactor" reactor.stop() def stuff2(): time.sleep(4) print "stuff2 finished" d1 = deferToThread(stuff1) d2 = deferToThread(stuff2) reactor.run()

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[Twisted-Python] Automatic test for Twisted
by Juanjo Conti May 29, 2009

May 29, 2009

Hi, is there a way to write sort of unittest for Twisted and run them? -- Juanjo Conti

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[Twisted-Python] Twisted protocol as Django data source
by Dan May 28, 2009

May 28, 2009

Hi all, I have an application written in Twisted which multiplexes data from a variety of pieces of specialized hardware, and I'd like to make the live stream of this information viewable through a webpage. Unfortunately, on our server, port 80 is already taken by an Apache + mod_python + Django stack with which we host a number of webpages. Ideally, I'd like to be able to write a quick Django app in which just import my Twisted protocol, connect to my network, and start streaming data. However, much googling has lead me to believe that this is unlikely to actually work. (Particularly, http://twistedmatrix.com/pipermail/twisted-web/2007-March/003311.html , which says that Twisted is simply not mod_python-friendly.) The options I've thought of include using Twisted's builtin web server a nonstandard port, mod_proxy, or writing a Django app which just polls a database repeatedly and altering my Twisted app so it repeatedly does an UPDATE. All of these solutions feel hacky to me, so I'd like to ask you, the list, how you'd go about doing this. Thanks, Dan

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[Twisted-Python] Guidance on Proxy-type Application
by Aaron Bush May 28, 2009

May 28, 2009

I have just started to look at the Twisted framework and would like to put it to use for a new project I am working on. Not being very familiar with the framework and fairly new to Python in general I would like to ask a design/architecture question. (I have written similar applications in C but would prefer to start this in the right direction and not write Python like C.) The application has the following model: Many clients connect to the Application and prefer to leave the connection open. They will send messages across this connection. They will expect to get a message back at some point later, they do not wait for a response (async). The clients are already coded (legacy) and just need to send their proprietary protocol to the new Application (written using Twisted). The Twisted application will take the data from the clients and do some transformation on it then send the message on to another server (3rd party). This connection to "another" server must be a single connection, not one connection per client. This connection should also be persistent and not opened/closed for each client message sent. Ideally if the 3rd party server is down then I would also not accept client connections as the messages are time sensitive and should not be stored and forwarded. At some point the 3rd part will send a message back and the Application will route it back to the original source. Basically request/reply pattern. I have been reading through the archives and the twisted docs and have also looked over the Hex-dump port-forwarding recipe but not found anything that explains how to use twisted for this model. Hex-dump is close but opens/closes the connection to the server on each client connection. I am thinking that there will be two Factories [and two protocols: 1) for clients and 2) for 3rd party]. I am not sure how to best establish both the listening factory and the client to 3rd party factory. Once they are established what is the preferred way in Twisted to pass a message from one protocol to another? Any pointers or sample code that you can offer is greatly appreciated. I would really like to cook this in Twisted and not go back to the C way. Thanks, -ab

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