Mailman 3 November 2018 - 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] code coverage when code executed in a twisted worker thread
by Chris Withers 03 Dec '18

03 Dec '18

Hi All, I've noticed that code coverage doesn't appear to be recorded when code is executed in something that has been deferToThread'ed. Is this a known issue? Does anyone have an explanation? cheers, Chris

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[Twisted-Python] twisted.web with dynamic + static content
by Jeff Grimmett 28 Nov '18

28 Nov '18

I'm sure I'm overlooking something obvious here but I just can't get my head around it. Here's the setup: twisted.web server that generates dynamic content. Child that serves up static content, e.g. css and favoicon. However, the static content isn't making it. Instead, any hit to localhost/static actually yields up a copy of / again. Here's the server code import sys from twisted.internet import reactor, endpoints from twisted.web import server from twisted.web.resource import Resource from twisted.web.static import File sys.path.append('lib') content = """ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <link rel="stylesheet" href="/static/test.css" type="text/css" /> </head> <body> <span class='twistedTest'>This</span> is a test </body> </html> """ class tServer(Resource): isLeaf = True def render_GET(self, request): return bytes(content, "utf-8") if __name__ == "__main__": root = tServer() root.putChild(b"static", File("static")) site = server.Site(root) endpoint = endpoints.TCP4ServerEndpoint(reactor, 8080) endpoint.listen(site) reactor.run() print("Shutting down!") It's run with the command 'python tserver.py'. The expectation is that what is inside the custom <span> will be red. In the same dir as the script is a subdir 'static' with the css file inside it. If I replace 'root' with root = Resource() then / doesn't serve up anything, but /static is a directory listing of the static directory. The dynamic server is basically a copy of several tutorials cooked down to something that I could use to demonstrate the problem. What am I missing here? /headscratch Regards, Jeff

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Re: [Twisted-Python] leakage between tests with trial when code under test uses deferToThread
by Chris Withers 26 Nov '18

26 Nov '18

Forgot to include the list in my reply... On 23/11/2018 22:27, Chris Withers wrote: > On 23/11/2018 22:22, Glyph wrote: >> >> >>> On Nov 23, 2018, at 7:58 AM, Chris Withers <chris(a)withers.org> wrote: >>> >>> Hi All, >>> >>> Does trial do anything to clean up stuff that's been passed to >>> deferToThread? >> >> Nope. It does its best to clean up stuff that it knows is "in" the >> reactor (sockets, timers, and the like), but since threads can kind >> of do ~whatever~ there hasn't been support for that. > > Actually, looks like there's stuff in trial's Janitor class, but it > only kicks in after the suite is finished, and I'm seeing leakage > between tests within a suite... > >> deferToThread is a bit of a special case and you make a good point >> here: there should probably be special support for it in trial. > > ...which I plan to add in carly in the meantime: basically block with > a timeout on everything in the threadpool finishing it's work. > > Speaking of which, I'm happy with how carly is turning out, but would > still welcome feedback, particularly on how the tests suites feel: > > https://github.com/cjw296/carly/tree/master/tests > > Just don't read hook.py unless you like head-bendy code ;-) Okay, so here's what I came up with <https://github.com/cjw296/carly/commit/71a1d2bfd501f5c561712c75253fc23c28c3…>. I'm not a fan of the sleep / busy loop pattern, but twisted makes it prettymuch impossible to get hold of the ThreadWorkers queue, so that I could block on them in this method. Any ideas on improvements would be very welcome! cheers, Chris

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[Twisted-Python] Weekly Bug Summary
by trac＠twistedmatrix.com 25 Nov '18

25 Nov '18

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[Twisted-Python] leakage between tests with trial when code under test uses deferToThread
by Chris Withers 23 Nov '18

23 Nov '18

Hi All, Does trial do anything to clean up stuff that's been passed to deferToThread? I'm seeing what looks like leakage between tests where stuff that is deferred to a thread from a LoopingCall is resulting in a DelayedCall ending up in the reactor for the next test. Does that ring any bells? cheers, Chris

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[Twisted-Python] Thread Consumption Problem in Daemon?
by Darren Govoni 23 Nov '18

23 Nov '18

Hi, I am using twisted to run my Flask app via WSGI like so. twistd --pidfile $PORT/pidfile -l $PORT/logfile -n web --port tcp:$PORT --wsgi my.app Naturally, I have functions representing routes that enter and exit just fine. However, I notice the twisted daemon process is :"gathering threads". Eventually system runs out of them. Here's a full status for one twisted server. 504 threads??? Name: twistd Umask: 0077 State: S (sleeping) Tgid: 54855 Ngid: 35415 Pid: 54855 PPid: 1 TracerPid: 0 Uid: 4052 4052 4052 4052 Gid: 4052 4052 4052 4052 FDSize: 256 Groups: 4052 VmPeak: 34240104 kB VmSize: 34239336 kB VmLck: 0 kB VmPin: 0 kB VmHWM: 1942708 kB VmRSS: 1871884 kB RssAnon: 1834800 kB RssFile: 37080 kB RssShmem: 4 kB VmData: 33310576 kB VmStk: 284 kB VmExe: 4 kB VmLib: 234176 kB VmPTE: 8876 kB VmSwap: 0 kB Threads: 504 SigQ: 1/1546652 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000000000000 SigIgn: 0000000001001007 SigCgt: 00000001800146e8 CapInh: 0000000000000000 CapPrm: 0000000000000000 CapEff: 0000000000000000 CapBnd: 0000001fffffffff CapAmb: 0000000000000000 Seccomp: 0 Speculation_Store_Bypass: thread vulnerable Cpus_allowed: ffffff,ffffffff Cpus_allowed_list: 0-55 Mems_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000003 Mems_allowed_list: 0-1 voluntary_ctxt_switches: 358534596 nonvoluntary_ctxt_switches: 31738

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[Twisted-Python] Weekly Bug Summary
by trac＠twistedmatrix.com 18 Nov '18

18 Nov '18

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