Mailman 3 August 2012 - Twisted

[Twisted-Python] Buildbot downtime
by Tom Prince 03 Mar '22

03 Mar '22

I am plannig to upgrade twisted's buildbot in the near future. In preperation for that, I am going to take down the production buildbot on Tuesday, June 26, around 1600 UTC[1]. During that time, the result of any builds done will be lost. Thus, I'd ask that people avoid committing to trunk during that time. I will send a reminder before I take down the buildbot both here, and on #twisted and #twisted-dev. Tom [1] http://timeanddate.com/worldclock/meetingtime.html?iso=20120626&p1=80&p2=22…

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[Twisted-Python] Twisted Python 0.7.0 Prerelease Testing
by Glyph Lefkowitz 05 Aug '21

05 Aug '21

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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[Twisted-Python] [ANN] txZMQ released
by Andrey Smirnov 21 Jul '14

21 Jul '14

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 02 Oct '13

02 Oct '13

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 28 Apr '13

28 Apr '13

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] GSoC 2012 Project, TwistedChecker
by Raphael Shu 29 Nov '12

29 Nov '12

Hi everyone, I'm a student of GSoC 2012, from University of Tsukuba, Japan. I'm glad to be selected as a practicer in Twisted project this year. Then in these serveral months, my project is to create a code standard checker for Twisted, Basically, I will follow "Twisted Coding Standard", it can be found at: http://twistedmatrix.com/trac/browser/trunk/doc/core/development/policy/cod… I hope finally this project could be integrated into our main ticket system, so it would automatically check patches or other things. Please let me know if you have any good advise or idea to this project. My name on IRC is zomux. ( This project is currently hosted on launchpad, http://launchpad.net/twistedchecker ) Thanks. Best Regards, -- *Raphael Shu , UACA 2012*

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[Twisted-Python] tap2deb problem with building package
by Klaudiusz Staniek 04 Sep '12

04 Sep '12

Hi when I try to build the deb package I'm getting the error message: cp: cannot create regular file `debian/tmp/etc/': No such file or directory What is wrong? See below output: Cheers, Klaudiusz tap2deb --unsigned -m "Klaudiusz Staniek <kstaniek(a)gmail.com>" --type=python -t xplhub.tac dpkg-buildpackage: set CFLAGS to default value: -g -O2 dpkg-buildpackage: set CPPFLAGS to default value: dpkg-buildpackage: set LDFLAGS to default value: -Wl,-Bsymbolic-functions dpkg-buildpackage: set FFLAGS to default value: -g -O2 dpkg-buildpackage: set CXXFLAGS to default value: -g -O2 dpkg-buildpackage: source package twisted-xplhub dpkg-buildpackage: source version 1.0 dpkg-buildpackage: source changed by Klaudiusz Staniek <kstaniek(a)gmail.com> dpkg-buildpackage: host architecture armel fakeroot debian/rules clean dh_testdir dh_testroot rm -f build-stamp install-stamp dh_clean dpkg-source -b twisted-xplhub-1.0 dpkg-source: info: using source format `1.0' dpkg-source: info: building twisted-xplhub in twisted-xplhub_1.0.tar.gz dpkg-source: info: building twisted-xplhub in twisted-xplhub_1.0.dsc debian/rules build dh_testdir touch build-stamp fakeroot debian/rules binary dh_testdir dh_testroot dh_clean -k dh_installdirs # Add here commands to install the package into debian/tmp. cp xplhub.tac debian/tmp/etc/ cp: cannot create regular file `debian/tmp/etc/': No such file or directory make: *** [install-stamp] Error 1 dpkg-buildpackage: error: fakeroot debian/rules binary gave error exit status 2

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[Twisted-Python] Using Deferred.called to distinguish between synchronous and asynchronous result
by Maciej Wasilak 30 Aug '12

30 Aug '12

Hello, I am implementing UDP-based protocol in Twisted (CoAP) which allows two behaviors when answering requests: 1. If response is immediately available - send acknowledgement and response in a single datagram (piggyback response) 2. If response needs to be fetched or prepared - send datagram with acknowledgement, and then send another datagram with a response (separate response) (I think behavior #1 is called synchronous in most Twisted tutorials, and behavior #2 is called asynchronous.) When programmer is implementing his application on top of CoAP protocol, he or she needs to choose how his request handler is going to behave. I would like to handle both behaviors in the same manner - by forcing every user-written request handler to return Deferred. Then I would check Deferred.called parameter. 1. If True - callback will execute immediately and send proper ACK+Response (that means request handler used defer.succeed() or somethin similar) 2. If False I send empty ACK, and wait for callback to send Response code: def respond(request): d = requestHandler(request) if d.called is False: sendEmptyAck() d.addCallback(sendResponse) I assume that sendResponse can send either ACK+RSP, or only RSP. I would like to ask if this is a proper approach? Best Regards Maciej Wasilak

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[Twisted-Python] Switching Protocols and TLS
by Tobias Oberstein 29 Aug '12

29 Aug '12

Hello, I am running a Twisted Web Site object that switches the protocol for specific paths. The goal is to run Twisted Web, and have certain paths mapped to WebSocket. I am aware of http://twistedmatrix.com/trac/ticket/3204 but in the meantime have working code https://github.com/tavendo/AutobahnPython/blob/master/autobahn/autobahn/res… This works for non-TLS, but not for TLS. This works perfectly: https://github.com/tavendo/AutobahnPython/tree/master/examples/websocket/ec… and this does NOT work: https://github.com/tavendo/AutobahnPython/tree/master/examples/websocket/ec… The latter is able to send stuff down to client, but won't receive anything. Any hint how to track that down would be great! Thanks, Tobias

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