Mailman 3 September 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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01 May '19

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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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Re: [Twisted-Python] dynamic FTP realm
by Tom Sheffler 01 Oct '12

01 Oct '12

Hi Paul - I'm very new to twisted (I've only just started using it, so I apologise if > anything I ask is seemingly obvious!). > I'm looking to try and set up a FTP server which will serve a file > structure and files which don't exists on the server (the file structure > information is stored on cassandra, and the files are on s3). The file > structure and files will also be unique to the user, so different logins > will generate the file structure for that particular user, but I guess I > can adress that later. Here is a quick sketch of some of the steps ... but beware, I haven't debugged this. You'll want to subclass twisted.protocols.ftp.FTPShell with a new command interpreter class PaulsFTPShell(FTPShell): .... The you'll need to write a Realm that returns an instance of your FTP Shell: class PaulsFTPRealm(FTPRealm): """ @type anonymousRoot: L{twisted.python.filepath.FilePath} @ivar anonymousRoot: Root of the filesystem to which anonymous users will be granted access. """ implements(portal.IRealm) def __init__(self, ....) .... def requestAvatar(self, avatarId, mind, *interfaces): for iface in interfaces: if iface is IFTPShell: if avatarId is checkers.ANONYMOUS: avatar = None else: avatar = PaulsFTPShell( ...) return IFTPShell, avatar, getattr(avatar, 'logout', lambda: None) raise NotImplementedError("Only IFTPShell interface is supported by this realm") Then you'll stich it all together like this: f = FTPFactory() r = PaulsFTPRealm() p = Portal.Portal(r) p.registerChecker(...) f.portal = p Hope this helps get you started.

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[Twisted-Python] Twisted + Redis-py + Connection Pooling
by Arkadiusz Rzadkowolski 30 Sep '12

30 Sep '12

Hello everyone I am currently working on creating a complex python script which will be using connection pooling from redis-py library (it will be working as a backport Unix Domain Socket for redis 1.4, which doesn't support unix sockets) The simplest version of my code was included in the attachment. I have a problem thought. Even if traffic is high (500+ requests per second) there are no new connections started to redis (added print to connection.py to trace it). Here's my output: 2012-09-28 23:00:31+0200 [-] Log opened. 2012-09-28 23:00:31+0200 [-] Factory starting on '/tmp/redis_test.sock' 2012-09-28 23:00:31+0200 [-] Starting factory <twisted.internet.protocol.Factory instance at 0x1fc77a0> 2012-09-28 23:00:31+0200 [RedisWorkerProtocol,0,] New connection After waiting 15 minutes, nothing more has been shown. Requests work just fine and always get a reply. I am curious though, why my code doesn't initiate more connections to redis? Could you please shed a light on this issue? Is it my code, redis-py simply doesn't need more connections, or twisted works in my code as "one connection at a time"? Really appreciate your reply. Thank you in advance and have a great weekend! -- Best regards, Arkadiusz Rz.

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com 29 Sep '12

29 Sep '12

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