Mailman 3 November 2017 - 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] PyPy 5.9.0 on buildbots
by Craig Rodrigues 29 Nov '17

29 Nov '17

Hi, Can someone update PyPy on the buildbots from PyPy 5.8.0 to PyPy 5.9.0? This will fix more of the PyPy tests: https://twistedmatrix.com/trac/ticket/9226 -- Craig

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[Twisted-Python] Accepting/merging patches for unsupported platforms without CI
by Adi Roiban 27 Nov '17

27 Nov '17

Hi, What is the procedure for accepting patches for platforms for which we don't have a continuous testing system ? This is a follow up of the review from https://twistedmatrix.com/trac/ticket/9323 There is a patch for Cygwin but AFAIK there is no current builder for running Twisted with Python on Cygwin. My first reaction was that before accepting such patches we should set up a continuous testing system. With such a system in place we can run the tests to see that the reported bug is present in trunk and that it is fixed in a branch. If that can't be done, we need at least someone to manually run the tests to check the patch. Twisted is supported on so many systems and I don't think that is OK to ask reviewers to have each supported system at hand, ready to fire a manual test. Any comments? Thanks, -- Adi Roiban

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[Twisted-Python] SMTPConnectError as a side effect on connection lost
by Adi Roiban 26 Nov '17

26 Nov '17

I hit a strange behavior in which the clone connection error from one test is raised as the error for another test. The tests are not written using trial, but I have thousands of other tests and I have never seen this behaviour. I tried to put a self-contained example at https://gist.github.com/adiroiban/edc0776e3337d0bd3f093aa0f2819deb#file-tes… you will need to run it in a virtulenv as it will pull quite a few of dependencies. I have traced the error to this code https://github.com/twisted/twisted/blob/03dcdfb5933c4f83ce6aad3f4bdf080cda6… if err.check(error.ConnectionDone): err.value = smtp.SMTPConnectError( -1, "Unable to connect to server.") self.result.errback(err.value) It looks to me like the initial failure (err) is hijacked here and its errors will never be cleared. If I am doing something like if err.check(error.ConnectionDone): value = smtp.SMTPConnectError( -1, "Unable to connect to server.") else: value = err.value err.cleanFailure() self.result.errback(value) then the test will pass. But I still don't understand how the error from one client request is passed to another client request when they are using different servers. Do you see anything suspicious with this code? Thanks! -- Adi Roiban

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[Twisted-Python] Weekly Bug Summary
by trac＠twistedmatrix.com 26 Nov '17

26 Nov '17

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[Twisted-Python] Need help fixing txkube unit test with latest Twisted
by Craig Rodrigues 24 Nov '17

24 Nov '17

Hi, I have been submitting patches to txkube (Python-based Kubernetes client) to work with the latest API changes for the reactor and TLS endpoints. I am down to only 1 test failing. I submitted this patch: https://github.com/LeastAuthority/txkube/pull/152/files based on changes that I saw in https://github.com/twisted/twisted/commit/cd75dd82f41b834ec8d53827932cf5661… but haven't gotten it to work. What I am trying to do is to get txkube to the point where I can install it with Python 2.7, and then type: trial txkube.test.test_authentication.AuthenticateWithServiceAccountTests.t est_https_bearer_token_authorization and get it to work. test_https_bearer_token_authorization is pretty much the same as test_http_bearer_token_authorization, just going over https. When running the test_https_bearer_token_authorization test, I traced things down into the ConnectionCompleter class: https://github.com/twisted/twisted/blob/trunk/src/twisted/test/iosim.py#L515 It looks like the serverFactory is not properly creating a serverProtocol, so no data is going through. Can someone familiar with the TLS endpoint changes in Twisted 17.1.0 point me in the right direction for this? -- Craig

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[Twisted-Python] Reactor.run() to be a non blocking call and run in background
by Nandha Kumar 23 Nov '17

23 Nov '17

Hi guys, I'm using twisted to host an ssh server.. My requirement that the python code I did needs to start the reactor and come out of the execution and needs to stop the reactor once stop is called.. But since the reactor. Run() seems to be a blocking one.. It isn't moving forward after starting the reactor.. Any work around on this would be appreciated.. Regards, Nandha Kumar S

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[Twisted-Python] OpenSSL versions
by Mark Williams 21 Nov '17

21 Nov '17

Hello, Users of Twisted and OpenSSL 1.1 and 1.0.2 cannot connect to all HTTPS sites because Twisted sets its own ECDH curve instead of using the defaults selected by these versions of OpenSSL. The gory details are here: https://twistedmatrix.com/trac/ticket/9210 https://github.com/twisted/twisted/pull/927 The solution to this bug favored by an OpenSSL maintainer is to drop support for OpenSSL versions before 1.0.2. I'm also in favor of this because: - 1.0.2 is the oldest supported version of OpenSSL - The ECDH curve selection code would be much simpler if we only supported OpenSSL 1.0.2 - cryptography wheels installed from PyPI include OpenSSL 1.1 Do you use the latest version of Twisted with OpenSSL 1.0.1? If so, do the above reasons satisfy your concerns? Thanks! -- Mark Williams mrw(a)enotuniq.org

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Twisted November 2017