Mailman 3 December 2012 - Twisted

[Twisted-Python] Buildbot downtime
by Tom Prince March 3, 2022

March 3, 2022

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 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] TaskStopped error, unsure of the cause and solution
by Paul Wiseman Feb. 12, 2013

Feb. 12, 2013

Hey, I'm getting the following error in my logs (lots and lots), but only after the server has been running for some time, I'm not sure what the cause is or what I can do to remedy it. This is what I see in the logs: 2012-12-20 17:07:17+0000 [HTTP11ClientProtocol,client] Unhandled Error Traceback (most recent call last): Failure: twisted.web._newclient.RequestTransmissionFailed: [<twisted.python.failure.Failure <class 'twisted.internet.error.ConnectionDone'>>] 2012-12-20 17:07:17+0000 [HTTP11ClientProtocol,client] Unexpected exception from twisted.web.client.FileBodyProducer.stopProducing Traceback (most recent call last): File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/endpoints.py", line 99, in connectionLost return self._wrappedProtocol.connectionLost(reason) File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/web/_newclient.py", line 859, in dispatcher return func(*args, **kwargs) File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/web/_newclient.py", line 1458, in _connectionLost_TRANSMITTING self._currentRequest.stopWriting() File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/web/_newclient.py", line 760, in stopWriting _callAppFunction(self.bodyProducer.stopProducing) --- <exception caught here> --- File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/web/_newclient.py", line 191, in _callAppFunction function() File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/web/client.py", line 760, in stopProducing self._task.stop() File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/task.py", line 459, in stop self._checkFinish() File "/usr/local/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/internet/task.py", line 469, in _checkFinish raise self._completionState twisted.internet.task.TaskStopped: Just loads of those, they always seem to come through in pairs (the first twisted.internet.error.ConnectionDone, and then the twisted.internet.task.TaskStopped as above) I'm just doing PUT requests with twisted.web.client.Agent and using a twisted.web.client.FileBodyProducer to provide the content. I'm doing the PUT while I still have the request from a render_GET, so I thought maybe it's caused if the user disconnects while I'm doing the PUT? The idea is I redirect them to the file I PUT with request.redirect, which seems to work fine (until I get this error and it doesn't) The reason I do a PUT and redirect, instead of just writing back to the request is that I check if the file is in a cache first, I then only PUT if it's not there- then redirect afterwards. Any clues or ideas of what is happening would be hugely helpful thanks!! Paul

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[Twisted-Python] Appropriate exception for AMP types receiving garbage?
by Laurens Van Houtven Jan. 13, 2013

Jan. 13, 2013

Hi, I'm writing a custom AMP type. I noticed that when writing the unit test for garbage input, I didn't really know what exception to check for. I couldn't find any place where this was formally defined, so I checked for implementation behavior. Boolean explicitly raises TypeError. Integer raises ValueError, but that appears to only be an implementation detail of int. It could also be that it doesn't matter at all, but it does seem a little strange that Integer and Boolean raise different exceptions when fed garbage... -- cheers lvh

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[Twisted-Python] Using telnet or linereceiver protocol over ssh
by Fabian Sturm Jan. 7, 2013

Jan. 7, 2013

Hello, I implemented a twisted ssh server using SSHFactory and successfully registered the sftp factory. I now also wanted to add a simple telnet like protocol where I can send commands to the server and execute some actions based on that. For that I hooked the LineReceive to the openShell command. It works and I can ssh into the server, but I don't get the typed characters echoed back. This unfortunately makes it unusable. What I could do is to implement a standard Protocol and send the received data back whenever I get a dataReceived call. And for a DEL character I would have to send a BCKSPC, BLANK, BACKSPC sequence and track the current line myself. This works but it sounds like too much to do! Is there a better way for something like that? Sincerely, Fabian

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[Twisted-Python] Need help using FTPClient
by Master Corp Jan. 2, 2013

Jan. 2, 2013

Hi. I am new to Twisted. I am using this code: http://twistedmatrix.com/documents/current/core/examples/ftpclient.py<http://twistedmatrix.com/documents/current/core/examples/ftpclient.py> Can this example be used to connect to an FTP through a SOCKS4/5 proxy? Can somebody provide an example of how it should be done? Thanks

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