Mailman 3 April 2015 - 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] revisiting onboarding
by Glyph Lefkowitz 26 Oct '15

26 Oct '15

A few months ago, the question of an official process for obtaining commit access was raised. The discussion lead to this proposal - https://twistedmatrix.com/trac/wiki/Proposal/ContributorAdvancementPath <https://twistedmatrix.com/trac/wiki/Proposal/ContributorAdvancementPath>. I like that proposal, but it is still incomplete: to wit, it defines a template for how roles might be defined but does not actually define any roles. It also seems to be a bit overly ambitious, just from the observed reaction of nobody having the time to implement it :). So I have a proposal for a scaled back process that nevertheless would give us something official-ish: Not all committers are actively involved in the project at all times, so we should form a "committer committee" of people who are interested in evaluating candidates. If you would like to do that and you're already a committer, please contact me and I'll add you to the list. I want to do this so there's somewhere to apply to which isn't just a public mailing list or discussion, since public discussions can create social pressure to grant someone commit just to be nice, and rejections might be perceived as mean. Candidates should submit an application to this new list, commit(a)twistedmatrix.com <mailto:commit@twistedmatrix.com> which is a list of links to at least 10 tickets, at least 5 of which are patches they've submitted, and at least 5 of which are code reviews they've done which have been accepted by a committer. At least 2 of their authored patches should have gone all the way through the process to be landed. As with the other parts of our process, if there is at least one sponsor, and no objections from anyone on the committee within 7 days, any member of the committee may add the committer. New committers should then be announced on the mailing list. This is not really an ideal process - particularly, it lacks a good way to give contributors something specific and useful to do - but it's something at least. If there is general assent that this is an improvement, I'll go make a wiki page and a mailing list. -glyph

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[Twisted-Python] txmongo vs. pymongo + callInThread
by Clayton Daley 12 Oct '15

12 Oct '15

Are there any major disadvantages of using pymongo with callInThread instead of txmongo? I'd like to take advantage of some newer features in pymongo (unfortunately not available in txmongo) and it's certainly easier to maintain feature parity using callInThread. Clayton Daley

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[Twisted-Python] Silverberg CQL Driver
by Jason J. W. Williams 02 Jul '15

02 Jul '15

Is anyone using the silverberg CQL (Cassandra) library for Twisted in production? Just curious what people's experience with it is, since it appears to be the most recently updated Twisted/CQL project. -J

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[Twisted-Python] LoopingCall.withCount countCallable called with 0
by Dario Vinella 10 May '15

10 May '15

Hi all, I found an odd behavior using a LoopingCall.withCount with a very small interval (0.02 sec): sometimes the countCallable is called with 0 as argument and it looks like the now - _realLastTime is smaller than the looping interval. Here you can find the very simple code I use to reproduce the "anomaly", with a main loopingCall and another one that prints its internals https://gist.github.com/dvinella/31d94f9dd0e47586658d and here an extract of the logs it produces https://gist.github.com/dvinella/8cfdce0b9f5fdda7b375 The doc for the withCount states that the argument should be normally 1, higher if the reactor blocks for some reason, but it doesn't say anything about 0. The beahavior is quite misleading since the loop seems to anticipate the interval timeout, saying "I've been called, but I should have not been called" I must add that the anomaly doesn't appear right at the start, but after tens of seconds, mostly when the system is under medium/heavy load. So is it only a documentation issue for an exceptional case, due to timers imprecision, that should be handled at higher levels, or is it a real issue? dario

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[Twisted-Python] flushing data to clients after a global variable is updated in server
by Jessica Tsui 01 May '15

01 May '15

Hi, it's me again. I am still working on the kivy app, and now I am trying to add a function to the app - the server side has two seconds to decide if he wants to alter the original data sent from one client to other clients. If he would like to do so, he has to press a button. If he does not press the button in 2 seconds, the original data will be sent to other clients automatically. Right now I am trying to achieve that with the following code - by calling the MultiClientEcho().dataReceived(msg, "censored") line in the function as if MultiClientEcho received another data, however once i click the button, the program crashed and said (MultiClientEcho().dataReceived(msg, "censored") TypeError: __init__() takes exactly 3 arguments (1 given)) I wonder how can I fix this and achieve the function I am aiming at? import kivy from kivy.app import App from kivy.uix.label import Label from kivy.uix.scatter import Scatter from kivy.uix.boxlayout import BoxLayout from kivy.uix.scrollview import ScrollView from kivy.uix.button import Button from kivy.graphics.vertex_instructions import Rectangle from kivy.graphics.context_instructions import Color from kivy.graphics.instructions import Instruction from kivy.base import runTouchApp from kivy.lang import Builder import socket from kivy.core.window import Window import pygame import random from kivy.support import install_twisted_reactor install_twisted_reactor() from twisted.internet import protocol, defer from time import sleep from twisted.internet import reactor, task from twisted.protocols.basic import LineReceiver from twisted.internet.protocol import Protocol, Factory censored = 0 class MultiClientEcho(protocol.Protocol): def __init__(self, factory, app): self.factory = factory self.app = app def connectionMade(self): self.factory.clients.append(self) def dataReceived(self, data): storedmessage = self.factory.app.handle_message(data) global censored def f(data): for client in self.factory.clients: client.transport.write(data) print "this will run in 1 sec after it's scheduled: %s" % data if censored == 0 and storedmessage: reactor.callLater(2, f, data) # client.transport.write(data) elif censored == 1: reactor.callLater(0, f, 'censored') censored == 0 def connectionLost(self, reason): self.factory.clients.remove(self) class MultiClientEchoFactory(protocol.Factory): protocol = MultiClientEcho def __init__(self, app): self.clients = [] self.app = app def buildProtocol(self, addr): return MultiClientEcho(self, self.app) class ServerApp(App): def build(self): self.label = Label(text="server started\n") self.approve_btn = Button(text="approve") # self.approve_btn.bind(on_release=self.send_message) self.banned_btn = Button(text="banned") self.banned_btn.bind(on_release=self.banned_message) self.layout = BoxLayout(orientation='vertical', spacing=10) reactor.listenTCP(8000, MultiClientEchoFactory(self)) self.layout.add_widget(self.label) self.layout.add_widget(self.banned_btn) return self.layout def banned_message(self, msg): global censored censored = 1 self.label.text += "censored\n" MultiClientEcho().dataReceived(msg, "censored") print censored return censored def handle_message(self, msg): self.label.text += "%s\n" % msg return msg if __name__ == '__main__': ServerApp().run() for i in range(0,1): print 1-i sleep(0.1)

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[Twisted-Python] twisted and twisted-infra organizations on GitHub
by Adi Roiban 30 Apr '15

30 Apr '15

Hi, I would like suggest the following changes regarding the way repos are organized in GitHub. Move all twisted-infra repos into Twisted organization.. and maybe merge many twisted-infra repos into braid. Move treq, klein, txmongo, filepath... divmod projects into a new organization dedicated to projects which are part of Twisted ecosystem. Any project which imports Twisted can be part of it. What do you say? -- Adi Roiban

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[Twisted-Python] Getting started on making the move to the new logging system
by Eeshan Garg 29 Apr '15

29 Apr '15

Hi everyone! I have gone through < http://twisted.readthedocs.org/en/latest/core/howto/logging.html> and < http://twisted.readthedocs.org/en/latest/core/howto/logger.html>. And I want to get started helping out with making the move to the new logging system. I talked to Glyph and ralphm about this at the PyCon sprints. The main purpose of this email is that I would like some advice as to how to move forward. Are there any other docs that I should read? Also, where should I start? What should be the scope of each individual ticket? I was talking to adiroiban and hawkowl on IRC about this, and they also recommended that I send an email to the mailing list before getting started, so here I am. I would really appreciate it if you could give me some advice and guidance regarding this. :-) Thanks, Eeshan Garg

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