Mailman 3 May 2012 - Twisted

[Twisted-Python] Twisted Python 0.7.0 Prerelease Testing
by Glyph Lefkowitz Aug. 5, 2021

Aug. 5, 2021

hi there, folks: I'd really like to release 0.7.0 but I would like it to be at least a little bit tested before I do so. Could those of you with CVS trees check everything out and see if it performs as advertised? Deeper bugs than that will have to wait for the next release, but I'd at least like to know if it works for someone other than me. Thanks. ______ __ __ _____ _ _ | ____ | \_/ |_____] |_____| |_____| |_____ | | | | @ t w i s t e d m a t r i x . c o m http://www.twistedmatrix.com/~glyph/

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May 1, 2019

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[Twisted-Python] [ANN] txZMQ released
by Andrey Smirnov July 21, 2014

July 21, 2014

Hi! I would like to announce txZMQ, ZeroMQ bindings for Twisted. txZMQ is based on pyzmq and requires recent ØMQ version (>=2.1). txZMQ uses ØMQ APIs to get file descriptor that is used to signal pending actions from ØMQ library IO thread running in separate thread. txZMQ should be usable with any Twisted reactor. ØMQ is: * The socket library that acts as a concurrency framework. * Carries messages across inproc, IPC, TCP, and multicast. * Connect N-to-N via fanout, pubsub, pipeline, request-reply. * Fast enough for clustered products and supercomputing. * Asynch I/O for scalable multicore message-passing apps. Bridging ØMQ and Twisted makes a nice match: fast simple messaging between Twisted instances solving complex problems :) Links: * PyPi: http://pypi.python.org/pypi/txZMQ/ * Source code: https://github.com/smira/pyzmq * pyzmq: http://pypi.python.org/pypi/pyzmq * ØMQ: http://www.zeromq.org/ -- Andrey Smirnov, Qik Web Team Lead

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[Twisted-Python] regarding xml elements
by Raj kumar Oct. 2, 2013

Oct. 2, 2013

Hi, I have an xml file in my application, I have created an element using Example goes like this......... document.createElement("abc") and i appeneded it by using append() method. But how i can reflect this change to my xml file? and one more thing is i want to create element with some other parameters.... like............. <abc m=" " n=" "> </abc> and i have m and n values as strings with me. can anybody help me to create this element and write it to the existing xml file as a child of an existing element? Thanks in advance.. Raj.. Forgot the famous last words? Access your message archive online at http://in.messenger.yahoo.com/webmessengerpromo.php

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[Twisted-Python] Get IP of connecting client in XMLRPC server
by Remy C. Cool April 28, 2013

April 28, 2013

Hello, On 18 May 2004, the following message was posted to this mailinglist: Jp Calderone exarkun at divmod.com wrote: >Daniel Newton wrote: > > I have a simple XML-PRC server similar to the example below: > > from twisted.web import xmlrpc, server > > class Example(xmlrpc.XMLRPC): > """An example object to be published.""" > > def xmlrpc_add(self, a, b): > """Return sum of arguments.""" > return a + b def xmlrpc_whatIsMyAddress(self): return self.transport.getPeer().host > > if __name__ == '__main__': > from twisted.internet import reactor > r = Example() > reactor.listenTCP(7080, server.Site(r)) > reactor.run() > > I want to be able to get the address of the client that calls the xmlrpc > method can anyone help me with this? This solution didn't work because 'transport' isn't a property of the Example class. I'm currently in the process of changing from a customized SimpleXMLRPCServer to a twisted XMLRPC server solution and I need to insert the client IP into the attributes passed to the called xmlrpc method. Anyone who knows the answer and is willing to share the info? Regards, Remy

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[Twisted-Python] Replacement for Twisted Tutorial in Europython 2012
by Orestis Markou June 9, 2012

June 9, 2012

Hello everyone, My proposal for delivering a 4h Twisted training in EuroPython 2012 (Florence, July 2-8) has been voted in the community and is set to be delivered on July 5. https://ep2012.europython.eu/conference/talks/twisted-tutorial This turned out to be very popular last year, and had to be repeated on a second day to cover all the audience. Unfortunately for personal reasons I won't be able to attend the conference. Before I give back the slot to the EuroPython organizers, I wonder if someone that would be attending would want to deliver the training in my place. I have a lot of material already from last year, and I can happily work for the preparation of the training. I need to give an answer to the organizers in the next few days, so if someone's interested, please speak up! Thanks, Orestis

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[Twisted-Python] question : dbus for twistd application framework
by bino oetomo May 31, 2012

May 31, 2012

Dear all ... I need my twistd script to also 'listen' to dbus. The only example that I found so far is : http://twistedmatrix.com/trac/attachment/ticket/1352/dbus-twisted.py Buit that example not using some thing like : application = service.Application("MyApp") Is there any example of dbus implementation on twistd that use service.Application ? Sincerely -bino-

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[Twisted-Python] Getting rid of "DirtyReactorWarning"
by Itamar Turner-Trauring May 30, 2012

May 30, 2012

I have a ticket open for allowing tests that look like this, where each run has a new reactor instance: def test_somethingShouldHappen(self, reactor): result = [] reactor.listenTCP(...) self.runReactor(reactor) self.assertEqual(result, ["hooray"]) Further thought suggests however that this doesn't add much, necessarily, over the current "return a Deferred" idiom for most users. Experience with ReactorBuilder framework that has similar testing mechanism suggests it's far too easy to fail to stop the reactor. Moreover, things like coiterate() don't work since they rely on pre-imported global reactor, and given the "from twisted.internet import reactor" idiom this testing style won't work well for many people's code. But! ReactorBuilder tests are superior in one way: no DirtyReactorWarning. You don't have to wait until all connections are closed, which is difficult, or make sure to cancel every timeout. This makes test writing simpler. Perhaps we should get rid of DirtyReactorWarning for regular Deferred-returning tests as well, then. We have all the infrastructure we need, after all, for canceling scheduled events and disconnecting all descriptors. We might want to log when we do so, to help debug things, but we already have cleanup code mostly implemented in trial anyway, and it seems like DirtyReactorWarning doesn't usually make future tests fail anyway since we do run cleanup. Threaded code might still be a problem, but that's the case for current tests now, and even switching to a new style of tests as above would only somewhat mitigate the issue. Thoughts?

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[Twisted-Python] HomeMatic - xmlrpc twisted !!
by vinod kumar May 29, 2012

May 29, 2012

Hi everyone, I'm trying to connect to homematic server at address '192.168.1.251' and port '2001'. I have a sample twisted server and client on my localhost. It's working fine. Now to the functions in server protocol.py file, I added another function (as shown below) which creates another client that connects to homematic server. But it's giving following error when I start the client. Error: File "/home/vinodh/Desktop/homematic/xmlrpc_twisted/protocol.py", line 45, in xmlrpc_init d = ClientCreator(reactor).connectTCP(self,'192.168.1.251',2001) exceptions.TypeError: __init__() takes at least 3 arguments (2 given)" my scenario is this way: mycleint ---> myserver(protocol file--->cliet-->homematic server) Please help me out. Thanks, Vinod

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Re: [Twisted-Python] Multiple transmissions via SMTPClient
by exarkun＠twistedmatrix.com May 27, 2012

May 27, 2012

On 23 May, 07:10 pm, jasonjwwilliams(a)gmail.com wrote: >Hi Guys, > >I've been banging my head on this for a few days so I thought I'd ping >folks here. Been trying to modify twisted.mail.smtp.ESMTPClient to >allow the sending of more than one message over a single TCP >connection. I've changed the behavior of smtpState_data() so that it >sets the next state to smtpState_from if there is another message to >send, and this seems to work unless there's an error returned by the >server. Are you sure you need to do this? The behavior is already to go back from "from" after "data" (by way of a RSET command). >In this case the connection is still closed on the client side >after smtpState_msgSent, and I need to suppress this. The subsequent >message should still be sent on the open TCP connection error or not, >according to my needs, however I'm having a heck of time tracking down >where the disconnection is occurring. > >My current code (with debugging statements) is here: >https://gist.github.com/2777154 > >Any help is greatly appreciated. This client is being used to run >functional tests. The method referred to by the attribute `_failresponse` is called if the server responds with an unexpected code. Set that to a different handler, to handle failures from the server differently. Jean-Paul

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