Mailman 3 February 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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01 May '19

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[Twisted-Python] How to restart Twisted service in-process
by Роман Мещеряков 02 Mar '17

02 Mar '17

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[Twisted-Python] Python3 twistd daemon for Ubuntu 14.04 alternatives
by Dave Curtis 28 Feb '17

28 Feb '17

Hi, so for my first post to the list I am going to ask a somewhat lame question. Apologies if this is not the right list -- clues welcome. I am doing a deploy of a server written in Python3 on Ubuntu 14.04. (14.04 for various reasons that are uninteresting to the list but DevOps has good/historical/hysterical reasons...) So my problem is that while my protocol stack spins up very nicely and trivially easy using the twistd daemon, the standard python3-twisted package for 14.04 is waaaay behind and doesn't include twistd (!), and I haven't found a good backport. I'd also like to avoid doing things that make life hard for DevOps, such as pip3 installing and risking a package manager fight. So some options: - Is there a reliable backport of the python3-twisted package for 14.04? Google is failing me on that one. - All I need is the most basic twistd functionality. Perhaps I should spin up my own by snarfing the code out of the twisted source repo. I can package this with my stuff temporarily and get on with life. Clues to the relevant parts of the repo welcome, I haven't poked around much in Twisted sources so need a road map. - Perhaps I should create my own backport for Ubuntu 14.04 of the current python3-twisted .deb. (This is probably not the right list to ask, but I'm happy to dereference a pointer.) This is a short-term problem for me, we are transitioning to 16.04 soon, but the process is driven by other parts of the software stack. So I don't want to over-invest. I'm looking for a reasonable band-aid. Thanks! -dave

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[Twisted-Python] Removing support for old Python 3 versions
by Amber Brown 28 Feb '17

28 Feb '17

Hi everyone! Currently, Twisted supports five Python versions. These are 2.7, 3.3, 3.4, 3.5, and now 3.6. This is more Python versions than Twisted has ever really supported in the past, and even though it is great to support a lot of runtimes, it is becoming a greater burden on Twisted to support so many. The major reasons for this is that newer Python 3 versions include useful features (such as % formatting for bytes) that earlier ones do not. This leads us to having two, or sometimes three, ways of doing something - the Python 2 way, the early Python 3 way, and the new Python 3 way. This introduces complexity (and bugs!) and means we can't really take advantage of anything nice Python 3 gives us in the future, as we still remain compatible with 3.3 and 3.4. As such, I would like to remove support for these Python versions. Using recent statistics (https://langui.sh/2016/12/09/data-driven-decisions/) we can infer that Python 3.3 is on the whole uncommon, despite it being the default Python 3 for Ubuntu 14.04 LTS. We can further infer that adoption of new major versions of Python 3 (Python 3.5 was barely a year old by the time of these stats and yet dwarfed 3.4) is rapid, and so it seems only the latest two or so are worth supporting. The other rationale I have for this is that we no longer have the problem of CentOS 6-style Python 2.6 being put into new production because it's what people ran -- the Brave New World of Docker and containerisation puts us in a different position than we were with Python 2.6. Although this is purely anecdotal, it appears lots of Python 3 installations are not through the operating system (due to how slow the cycles are, and the proliferation of PPAs and Docker containers), and therefore being tied to whatever current OSs support is not doing any Python 3 users a real service. With this rationale, I propose that the next version of Twisted (most likely 17.3) will be the last to support Python 3.3. The question of Python 3.4 support is something that will need further discussion (where 3.3 just plain has the writing on the wall), but I believe a removal of support not long after is reasonable, considering the 3.4 installed base is smaller than that of 2.6. Thoughts? - Amber Brown, Release Owl

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[Twisted-Python] Test coverage requirements
by Jean-Paul Calderone 28 Feb '17

28 Feb '17

Hi, I'm looking at some <https://codecov.io/gh/twisted/twisted/pull/509> recent <https://codecov.io/gh/twisted/twisted/pull/432> trunk <https://codecov.io/gh/twisted/twisted/pull/652> commits <https://codecov.io/gh/twisted/twisted/pull/695> (also, others) that seem to have non-trivial untested code at at ReviewProcess <https://twistedmatrix.com/trac/wiki/ReviewProcess#Authors:Thingsyourbrancho…>. I can't tell if the codecov reports are wrong or if the development process documentation is wrong or if the commits just violate policy or (I guess) some mix of the three. Can anyone shed any light on this? Jean-Paul

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[Twisted-Python] trac spam
by Jean-Paul Calderone 27 Feb '17

27 Feb '17

Tickets 9058 and 9059 are spam. I would have cleaned them up but it's not clear from the UI how (actually I clicked a "delete" button in the UI but the tickets are there so I guess "delete" doesn't mean what I think). Jean-Paul

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[Twisted-Python] catching twisted pyqt segmentation fault
by Kevin Mcintyre 27 Feb '17

27 Feb '17

I have a long running twisted pyqt process which occasionally throws a Received signal 11. I believe it's in the underlying QtWebEngineView since the twisted process continues to run. Whatever the reason I would like to figure out a way to catch this and stop the reactor either in process, or by another process monitor. Any suggestions either twisted or otherwise would be greatly appreciated. Below is a bit of the stack trace dumped to /var/log/syslog 0x7fd855447a8f Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 2 0x7fd855447c74 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 3 0x7fd8555d6a82 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 4 0x7fd8556ababd Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 5 0x7fd8556af2f6 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 6 0x7fd85586e52d Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 7 0x7fd85586f511 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 8 0x7fd85570dbc3 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 9 0x7fd85570dd92 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 10 0x7fd855516c0c Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 11 0x7fd85551dacd Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 12 0x7fd85596c5d3 Feb 25 22:01:32 ip-10-0-0-116 python[1836]: 13 0x35946920c1fb Feb 25 22:01:32 ip-10-0-0-116 python[1836]: Received signal 11 SEGV_MAPERR 0000fbadbeef Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #0 0x7fd856d5ca2e <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #1 0x7fd856d5cdeb <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #2 0x7fd8526d3390 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #3 0x7fd858404408 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #4 0x7fd855447a8f <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #5 0x7fd855447c74 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #6 0x7fd8555d6a82 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #7 0x7fd8556ababd <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #8 0x7fd8556af2f6 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #9 0x7fd85586e52d <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #10 0x7fd85586f511 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #11 0x7fd85570dbc3 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #12 0x7fd85570dd92 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #13 0x7fd855516c0c <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #14 0x7fd85551dacd <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #15 0x7fd85596c5d3 <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: #16 0x35946920c1fb <unknown> Feb 25 22:01:32 ip-10-0-0-116 python[1836]: r8: 00007fd85a2f38c0 r9: 0000000000000013 r10: 0000000000000000 r11: Feb 25 22:01:32 ip-10-0-0-116 python[1836]: r12: 00007fd858aa25c8 r13: 00007fd858ab91ee r14: 00007fd85a0c9848 r15: Feb 25 22:01:32 ip-10-0-0-116 python[1836]: di: 0000000000000000 si: 0000000000000013 bp: 00007fd858ab91ee bx: Feb 25 22:01:32 ip-10-0-0-116 python[1836]: dx: 00007fd851e1d770 ax: 00000000fbadbeef cx: 00007fd851b4e6fd sp: Feb 25 22:01:32 ip-10-0-0-116 python[1836]: ip: 00007fd858404408 efl: 0000000000010246 cgf: 0000000000000033 erf: Feb 25 22:01:32 ip-10-0-0-116 python[1836]: trp: 000000000000000e msk: 0000000000000000 cr2: 00000000fbadbeef Feb 25 22:01:32 ip-10-0-0-116 python[1836]: [end of stack trace]

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

26 Feb '17

1 0