Mailman 3 January 2013 - 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…

2 8

[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. ______ __ __ _____ _ _ | ____ | \_/ |_____] |_____| |… [View More]

4 5

[Twisted-Python] Real Viagra Professional - for real sex pros
by Tamika May 1, 2019

May 1, 2019

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <center> <a href="http://rqf.entercompassion.com"><img src="http://mediapix.ru/pics/685207b3dd437eff7f15c0744b5c1d3a.gif"> <title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" href="http://gfx8.nnt.com/mail/12.0.1187.0824/positioning.css" /> </head> <body style="overflow:auto;"… [View More]> <div id="PrintShellToolbar"> <div class="ContainerPadding"> <span class="FloatRight"> <a href= > <img alt="" src="http://gfx1.nfi.com/mail/w2/pr02/ltr/glyph_close_rest.gif" /> <Close window> <a href= > <img alt="" src="http://gfx2.czb.com/mail/w2/pr02/ltr/i_print.gif" /> <Print> </a> </span> </div> </div> <div> <div class="BorderContainerOutline ContainerPadding"> <div class="ClearBoth"> <span class="HeaderData" style="font-size:large;"> <TuPostal.com Cambia de nombre?> </span> </div> <div class="ClearBoth"> <span class="HeaderLabel"> <From:> </span> <span class="HeaderData"> <b><TuPostal.com></b> </span> </div> <div class="ClearBoth"> <span class="HeaderLabel"> <Sent:> </span> <span class="HeaderData"> <div class="ClearBoth"> <span class="HeaderLabel"> To: </span> <span class="HeaderData"> Mikelelliott (mikelelliott(a)rlo.com) </span> </div> <br /> </div> </div> <div class="MessageBody" style=""> <br /> <div id="MessageBodyText" class="ExternalClass" style="border: 1px solid #fff ;"> <pre>Hola!<br> <br>Tupostal es ahora parte de Sonico!<br> <br>Para conocer nuestro nuevo sitio, haz clic en el siguiente link:<br><a href='http://www.gwpcom/index1.php' target='_blank'>http://www.bjncom/index1.php</a><br> <br>Sonico es un sitio donde puedes...<br>- Guardar fotos ilimitadas<br>- Re encontrarte con viejos amigos<br>- Recibir novedades de tus amigos.<br> <br>Te Esperamos! Ya somos mas de 21 millones de usuarios!!<br> <br>Sonico - Amigos Conectados<br> <br> <br>PD: Ahora tambien podras guardar tus postales<br> <br> <br>------------------------------------------<br>Haz recibido este email porque te encuentras registrado en fdm.com.<br>Si no deseas recibir mas mensajes como este, por favor haz clic en el siguiente link:<br><a href='http://www.cehcom/unsubscribe.php?type=2' target='_blank'>http://www.fyocom/unsubscribe.php?type=2</a><br> <br></pre> </div> </div> </div> </body> </html> [View Less]

8 10

[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,… [View More]

8 11

[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 … [View More]

9 14

[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 … [View More]

3 3

[Twisted-Python] Testing Twisted code without trial
by Adi Roiban March 26, 2013

March 26, 2013

Hi, I start my pet project using Python Nose as test runner. At the start, Twisted not used at all. Later I discovered Twisted and start using it... but testing Twisted requires trial. I resist migrating to Trial and ended up with a custom code for running Twisted tests together with Nose: https://github.com/chevah/chevah-rhinoplasty I though I can share this code on the list, in case there is someone else wrestling with deferres testing outside of Trial. Any feedback or comments is much … [View More]

4 10

[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'>>] … [View More]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 [View Less]

3 6

[Twisted-Python] maintenance release - a security issue and a regression
by Glyph Feb. 2, 2013

Feb. 2, 2013

I think it might be time to have a maintenance release. Two issues in particular stand out which might be suitable for inclusion in a 12.3.1: <http://twistedmatrix.com/trac/ticket/6275> - This is a potential security issue which affects any twisted.web.template that uses the (recommended!) method of using a <t:attr> tag to render an attribute within a template. This might even be suitable for maintenance releases of older versions, if anyone is using them. <http://… [View More]

5 6

[Twisted-Python] txjsonrpc
by Matthew Williams Feb. 1, 2013

Feb. 1, 2013

I have a couple questions regarding txjsonrpc ( https://github.com/oubiwann/txjsonrpc/) in connection with the recent addition of version 2.0 support. * How complete is the version 2.0 support? I had actually tried some years ago to add v2.0 support, but gave up due to some issues I no longer fully recall. Are there any known issues with the present implementation? * I noticed that all results are wrapped in an array (see netstring version at https://github.com/oubiwann/txjsonrpc/blob/master/… [View More]

3 5

[Twisted-Python] Twisted-related talks and tutorials at PyCon
by Itamar Turner-Trauring Jan. 28, 2013

Jan. 28, 2013

Hi, Thought I'd point out some Twisted-related talks at PyCon; I may have missed a few. *Tutorials* Jessica "jesstess" McKellar is teaching two tutorials, one of which teaches the basics of contributing to open source projects, in case you've wanted to contribute to Twisted but haven't yet figured out the process: https://us.pycon.org/2013/schedule/presentation/4/. I will be teaching a tutorial on test-driven development with Twisted, explaining how to build robust, well-tested … [View More]

2 2

Re: [Twisted-Python] inlineCallbacks: multiple yielding same Defferred behaviour
by Sergey V. Gerasimov Jan. 28, 2013

Jan. 28, 2013

My target is just to deny request duplications. Reg. inlineCallbacks.. What do you think is it possible to implement inlineCallbacks generator in the way allows multiple yields? (but do not modify Defferred) From: Laurens Van Houtven [mailto:_@lvh.cc] Sent: Monday, January 28, 2013 1:43 PM To: sergun(a)gmail.com Subject: Re: [Twisted-Python] inlineCallbacks: multiple yielding same Defferred behaviour The short answer is that those models don't support chaining the way Deferreds do, … [View More]IIUC. I think a very similar thing was a bonus question at the tutorial Stephen Thorne and I gave at EuroPython last year. Do you want to cache results as well, or only not make duplicate requests when one is in-flight? On Mon, Jan 28, 2013 at 10:36 AM, Sergey V. Gerasimov <sergun(a)gmail.com> wrote: Hi Laurens, Thanks for your reply! I need something like this. A server that processes requests and handles situation when there are 2 requests with same key. class Server(object): def __init__(self): self.requestsInProgress = {} # dict: key -> Deferred with result @defer.inlineCallbacks def request(self, key): in_progress = key in self.requests if in_progress: d = self.requestsInProgress [key] result = yield d else: d = process_request(key) self.requests[key] = d result = yield d del self.requestsInProgress [key] defer.returnValue(result) How can I implement the logic correctly? In my opinion it's very simple and clear concept to consider Deferred just like deferred execution of some action. In this case you should be able to get it's result (doing yield) many times (why not?). I have deal with Task-based programming and async functions (mechanism similar to Deferred and inlineCallbacks decorated functions in Twisted) in Microsoft .NET. MS people have implemented Task (analogue of Deferred) in the way I described. From: Laurens Van Houtven [mailto:_@lvh.cc] Sent: Monday, January 28, 2013 12:47 PM To: sergun(a)gmail.com; Twisted general discussion Subject: Re: [Twisted-Python] inlineCallbacks: multiple yielding same Defferred behaviour I'm not entirely sure why you feel this is unintuitive or why you should need a workaround; in any other case, deferreds work pretty much the same way. When reading this code, the first question that pops up in my head is: why are you doing this instead of just using the result that you already have (and assigned to a name)? How did this waiting-twice-on-one-deferred happen? On Mon, Jan 28, 2013 at 8:47 AM, Sergey V. Gerasimov <sergun(a)gmail.com> wrote: It's not intuitively clear why multiple yielding the same Defferred in function decorated with defer.inlineCallbacks get different results: @defer.inlineCallbacks def f(): d = defer.succeed(1) result = yield d print result result = yield d print result Output: 1 None Probably we SHOULD NOT think if "d" was or was not yielded before when using inlineCallbacks.. Are they some workarounds? _______________________________________________ Twisted-Python mailing list Twisted-Python(a)twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python -- cheers lvh -- cheers lvh [View Less]

2 1

[Twisted-Python] inlineCallbacks: multiple yielding same Defferred behaviour
by Sergey V. Gerasimov Jan. 28, 2013

Jan. 28, 2013

It's not intuitively clear why multiple yielding the same Defferred in function decorated with defer.inlineCallbacks get different results: @defer.inlineCallbacks def f(): d = defer.succeed(1) result = yield d print result result = yield d print result Output: 1 None Probably we SHOULD NOT think if "d" was or was not yielded before when using inlineCallbacks.. Are they some workarounds?

2 2

[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com Jan. 27, 2013

Jan. 27, 2013

1 0

[Twisted-Python] Amazing exception "GeneratorExit"
by Аркадий Левин Jan. 25, 2013

Jan. 25, 2013

Hi all, i got strange error If run this: # -*- coding: UTF-8 -*- import os import sys from twisted.python import log from twisted.internet import reactor from twisted.internet.defer import Deferred, inlineCallbacks @inlineCallbacks def _(): try: (yield Deferred()) except: log.err() reactor.callLater(0, _) reactor.run() i got exception "GeneratorExit" Why?! ... this code work: # -*- coding: UTF-8 -*- import os import sys from twisted.python import log from twisted.internet … [View More]

2 3

Re: [Twisted-Python] Stopping Reactor in UnitTest Callback
by Fabian Rothfuchs Jan. 25, 2013

Jan. 25, 2013

Hey again! Having the setup doing quite well so far, I just ran into a problem that I do not know how to debug: Testcase `setUp()` starts a server that subclasses `twisted.web.resource.Resource` , as it's going to be a lightweight SOAP server, responding with hard-coded xml strings. Purpose is to check the request for validity. The Testcase's `test_*()` function initiates a client request by using the suds module. I now discovered that the server process started in `setUp()` hangs as long as … [View More]

2 2

Re: [Twisted-Python] Twisted Names strings
by exarkun＠twistedmatrix.com Jan. 22, 2013

Jan. 22, 2013

On 03:37 pm, angelo.dellaera(a)gmail.com wrote: > >Hi, >I didn't have the possibility to test the fix during the last days >(hopefully will do >in the next hours) but taking a look at the fix proposed by ralphm > >http://twistedmatrix.com/trac/changeset/36867 > >it seems like the patch is not complete because a similar check (and >potential >conversion) should be inserted in the twisted.names.dns.Name __init__ >method >too. Am I wrong? Hi Angelo, … [View More]

1 0

[Twisted-Python] Twisted client memory leak
by Diego Woitasen Jan. 22, 2013

Jan. 22, 2013

I have an Twisted client app that makes hundreds of connections per minute. I discover that I have a memory leak un my app and I'm almost sure that is related to the ClientFactory() derived class that is never deleted. I reproduce the problem with a modification of Echo client example from Twisted documentation: from twisted.internet.protocol import Protocol, ClientFactory from twisted.internet import reactor from twisted.internet.task import LoopingCall from sys import … [View More]

6 14

[Twisted-Python] Twisted Names strings
by Angelo Dell'Aera Jan. 22, 2013

Jan. 22, 2013

After updating Twisted to 12.3.0 I started getting errors like the following one 2013-01-17 14:38:23+0100 [-] File "/usr/lib64/python2.7/site-packages/twisted/names/common.py", line 93, in lookupAddress 2013-01-17 14:38:23+0100 [-] return self._lookup(name, dns.IN, dns.A, timeout) 2013-01-17 14:38:23+0100 [-] File "/usr/lib64/python2.7/site-packages/twisted/names/client.py", line 384, in _lookup 2013-01-17 14:38:23+0100 [-] d = self.queryUDP([dns.Query(name, type, cls)], timeout) … [View More]

6 11

[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com Jan. 20, 2013

Jan. 20, 2013

1 0

Re: [Twisted-Python] Layer 2 and Twitsted
by David Serafini Jan. 16, 2013

Jan. 16, 2013

> Date: Tue, 15 Jan 2013 14:38:47 -0500 > From: outcast <james.voip+twisted(a)gmail.com> > > Don't want to use tap type of devices. Want to be able to handle packets > natively from the interface with minimal amount of overhead. Basically want > my own rx_handler to python call back. Yes I want the raw ethernet frames. > Looking at an embedded solution so its a case of less is more. What about a kernel bypass solution like Solarflare? You'd have to write a Python-C … [View More]

2 1

[Twisted-Python] TLSMemoryBIOProtocol _shutdownTLS what to do when not successfull
by Adi Roiban Jan. 16, 2013

Jan. 16, 2013

Hi, Here is this code in t.p.t.TLSMemoryBIOProtocol def _shutdownTLS(self): """ Initiate, or reply to, the shutdown handshake of the TLS layer. """ self._flushSendBIO() shutdownSuccess = self._tlsConnection.shutdown() self._flushSendBIO() if shutdownSuccess: # Both sides have shutdown, so we can start closing lower-level # transport. This will also happen if we haven't started # negotiation at all … [View More]

2 1

[Twisted-Python] Layer 2 and Twitsted
by outcast Jan. 15, 2013

Jan. 15, 2013

Greetings, Has anyone done any work around using twisted for layer 2 traffic? -James

3 5

[Twisted-Python] Must avatarId always be a string?
by Peter Westlake Jan. 15, 2013

Jan. 15, 2013

http://twistedmatrix.com/documents/current/core/howto/cred.html says that the avatarId parameter to IRealm.requestAvatar must be a string, not even a Unicode string. I'm using LDAP for authentication, and the checker retrieves the full LDAP entry for the user as a side-effect of authentication. Until I read that doc I was happily passing back the tuple of LDAP details as an avatarId, and it all works perfectly well. Is it really wrong, and if so, how will it fail? And what should I do instead … [View More]

8 23

[Twisted-Python] Stopping Reactor in UnitTest Callback
by F Rothfuchs Jan. 15, 2013

Jan. 15, 2013

Hey there, I'm trying to start and stop a twisted server in a unittest: http://dpaste.org/qwaUt/ . Calling reactor.stop() in the callback causes a KeyboardInterrupt exception, and tearDown gets never executed, as it's probably waiting for the test to finish. After calling `trial d.py` you need to run a `telnet localhost 8007` manually to stimulate the connectionMade() method. I'm totally stuck and would appreciate any help. Thanks Fabian

5 6