Mailman 3 August 2007 - Twisted

[Twisted-Python] Checking whether a server started successfully
by Maarten ter Huurne Aug. 22, 2007

Aug. 22, 2007

Hi, I am starting a server process using "twistd -oy" (don't save state; application is described by Python source). If all is well, the server is started in the background. However, if all is not well, I'd like to detect that startup failed. The particular scenario that I'm using is testing a server using a test framework that does HTTP requests. Before the tests are run, the server is started and it tries to bind to a fixed port. If there is still an old instance of the server running,… [View More]

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[Twisted-Python] Adapter for a class, not for an instance
by Vincent Bernat Aug. 22, 2007

Aug. 22, 2007

Hi ! Currently, adapters can transform an instance into another instance. I would like to use adapters to transform a class into an instance. Does something like that already exists ? Thanks.

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[Twisted-Python] invoking Deferred synchronously
by Laurie Harper Aug. 21, 2007

Aug. 21, 2007

I'm sure this is trivial enough, but it has me scratching my head... I need to call a method that returns a Deferred, then block until the deferred completes (or errback's) and return the final result of the deferred call. Specifically, something like: r = None, is_ok = None def ok(p): r, is_ok = p, True def fail(e): r, is_ok = e, False cf = pb.PBClientFactory() reactor.connectTCP(host, port, cf) d = cf.login(creds, client=self).addCallbacks(ok, fail) # … [View More]

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[Twisted-Python] Questions about the Perspective Broker login mechanism
by Julien Peeters Aug. 21, 2007

Aug. 21, 2007

Hi readers, I'm looking for the person who implements the actual version of the login mechanism in the Perspective Broker. More precisely, I wonder what are the reasons to have chosen a challenge/response strategy to do login. I use the Perspective Broker in a project and before modifying anything, I want to be sure of what I do. Thank you for your attention, Julien.

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[Twisted-Python] locking threads when deferToThread is used
by Ladislav Andel Aug. 20, 2007

Aug. 20, 2007

Hi, I'm writing an application which will be periodically testing servers. I will have a global list of these servers(domain names) and need to do few tasks. 1) DNS checks - I will use asynchronous twisted-names for it - in case there is a difference comparing to the list it should update the list(then also in DB) 2) ICMP pings - should be also possible to do it asynchronously 3) Blocking function which will be pinging with SIP requests - here I will use function deferToThread to make it non-… [View More]

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[Twisted-Python] Weekly Bug Summary
by exarkun＠twistedmatrix.com Aug. 19, 2007

Aug. 19, 2007

Bug summary ______________________ Summary for 2007-08-12 through 2007-08-19 Bugs opened: 9 Bugs closed: 5 Total open bugs: 1014 (+4) |== Type Changes |== Priority Changes |== Component Changes |Defect: +5 |Highest: -2 |Conch: +1 |Enhancement: +1 |Normal: +7 |Core: +2 |Lowest: +1 |Trial: +3 New / Reopened Bugs ______________________ ===== Highest ===== [#2679] … [View More]twisted.conch.ssh.keys has poor tests. (opened by z3p) defect conch http://twistedmatrix.com/trac/ticket/2679 ===== Normal ===== [#2784] trial reporter plugins can't get real failures unless they subclass trial's reporter class (opened by exarkun) defect trial http://twistedmatrix.com/trac/ticket/2784 [#2785] twisted.trial.itrial.IReporter is missing addSkip (opened by exarkun) defect trial http://twistedmatrix.com/trac/ticket/2785 [#2786] Trial's --until-failure feature is fragile and under-tested (opened by jml) enhancement trial http://twistedmatrix.com/trac/ticket/2786 [#2787] IReactorProcess.spawnProcess doesn't document all exceptions which the implementation can raise (opened by exarkun) defect core http://twistedmatrix.com/trac/ticket/2787 [#2788] StringTransport does not support .host/.port (opened by Lacrymology) defect core http://twistedmatrix.com/trac/ticket/2788 [#2790] UDP Transport write() raises socket.error EWOULDBLOCK (opened by Peaker) defect core http://twistedmatrix.com/trac/ticket/2790 [#2786] Trial's --until-failure feature is fragile and under-tested (opened by jml) enhancement trial http://twistedmatrix.com/trac/ticket/2786 ===== Lowest ===== [#2789] Windows Process Pipes are polled with 100% cpu (opened by Peaker) defect core http://twistedmatrix.com/trac/ticket/2789 Closed Bugs ______________________ ===== Highest ===== [#2749] Add a utility method to trial to check the type of an object (opened by therve, closed by therve, fixed) enhancement trial http://twistedmatrix.com/trac/ticket/2749 [#2341] Merge twisted.internet.process.PTYProcess and Process (opened by itamarst, closed by therve, fixed) defect core http://twistedmatrix.com/trac/ticket/2341 [#2769] Update plugins howto to cover new API for <package>/plugins/__init__.py added in #2339 (opened by itamarst, closed by exarkun, fixed) defect core http://twistedmatrix.com/trac/ticket/2769 [#2679] twisted.conch.ssh.keys has poor tests. (opened by z3p, closed by z3p, ) defect conch http://twistedmatrix.com/trac/ticket/2679 ===== Normal ===== [#2786] Trial's --until-failure feature is fragile and under-tested (opened by jml, closed by jml, ) enhancement trial http://twistedmatrix.com/trac/ticket/2786 Ticket Lifetime Stats ______________________ Oldest open ticket - [#38] Should be a way to create documentation aliases (since 2003-07-12 16:08:03). Newest open ticket - [#2790] UDP Transport write() raises socket.error EWOULDBLOCK (since 2007-08-18 17:39:59). Mean open ticket age: 505 days, 15:14:17.121751. Median: 397 days, 19:31:32.214454. Standard deviation: 396 days, 9:06:38.504059. Interquartile range: 490 days, 3:14:30. Mean time between ticket creation and ticket resolution: 119 days, 13:28:12.330649. Median: 14 days, 3:38:33. Standard deviation is 222 days, 18:22:19.136294. The interquartile range is 125 days, 7:40:09. Mean time spent in review: 61 days, 21:07:27.431849. Median: 4 days, 0:03:10. Standard deviation: 134 days, 13:25:27.447625. Interquartile range: 29 days, 21:36:30.259426. Mean number of times a ticket is reviewed: 1.88461538462. Median: 1 Standard deviation: 1.46797671007. Interquartile range: 1. Contributor Stats ______________________ In the last 4 weeks, 20 unique ticket reporters 10 unique ticket reviewers 5 unique ticket resolvers In the last 24 weeks, 83 unique ticket reporters 14 unique ticket reviewers 17 unique ticket resolvers In the last 48 weeks, 156 unique ticket reporters 21 unique ticket reviewers 26 unique ticket resolvers [View Less]

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[Twisted-Python] scheduling timers with long interval
by Alec Matusis Aug. 18, 2007

Aug. 18, 2007

I have a server that is running for weeks without restart, under significant load. I am considering adding a function to it that requires setting long timers like twisted.internet.reactor.callLater(604800, func) i.e. scheduling events one week ahead. There will be up to 500 timers active at any given time. I do not know how the scheduler works. Will having these timers with very long intervals significantly tax the performance, since the reactor will have to check on their status with … [View More]

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[Twisted-Python] scheduling timers with long intervals
by Alec Matusis Aug. 17, 2007

Aug. 17, 2007

I have a server that is running for weeks without restart, under significant load. We are considering adding a function to it that requires setting long timers like twisted.internet.reactor.callLater(604800, func) i.e. scheduling events one week ahead. There will be up to 500 timers active at any given time. I do not know how the scheduler works. Will having these timers with very long intervals significantly tax the performance, since the reactor will have to check on their status … [View More]

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[Twisted-Python] again deferToThreads
by Ladislav Andel Aug. 16, 2007

Aug. 16, 2007

Hello, I have a two functions which I run in one thread called via deferToThread. There is function called siptest_f and function pingNode test. siptest_f returns a dictionary and pingNode returns the average time out of 3 received packets. Below is code I use. I run it through reactor event loop which is not shown here. My problem is that the function on its own returns correct results but if use it within following code I get always different results and mostly wrong. There should probably … [View More]

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[Twisted-Python] Best way to write a modularized proxy?
by Andrew Warkentin Aug. 16, 2007

Aug. 16, 2007

I am writing a modular multi-protocol proxy (initially for HTTP, and later HTTPS and possibly FTP as well) using Twisted. It will consist of a small core that handles initialization and loading of modules, a module for each protocol (which will consist of a part that accepts connections and a part that connects to the remote server), and several "filter" modules (which will be inserted in a "stack" between the two halves of the protocol module) for things like caching and filtering. … [View More]

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