Mailman 3 April 2015 - Twisted

[Twisted-Python] LimitedHistoryLogObserver is considered harmful ?
by Burak Arslan April 3, 2015

April 3, 2015

Hi, I happen to have the new logging hotness(tm) running in production as the backend to python's own logging module in one of the daemons that I'm responsible for. I also have dowser[1] integrated with this one so tryng to optimize memory usage is almost fun :) So I noticed one day LimitedHistoryObserver was responsible for holding on to ~30k dict instances. I fixed this with [2]. Resident set size with 48hrs uptime is now down ~300M thanks to that function (and is flat). That's a bit too much for my tastes so I thought maybe you can reconsider that 64 * 1024 entry limit or choose to get rid of the default observer automatically once the global observer has a proper user-supplied sink. Best regards, Burak PS: Neurons will be a web framework that ties a lot of stuff like sqlalchemy, spyne and twisted together. Currently it does only two things quite well: Forking and rendering html forms :) [1] https://github.com/plq/neurons/tree/master/neurons/daemon/dowser [2] https://github.com/plq/neurons/blob/417836a729706f2d1449109ccbb7d4a51022705…

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[Twisted-Python] [ANN] clj-amp 0.9.0
by Tristan Seligmann April 3, 2015

April 3, 2015

I am pleased to announce the release of clj-amp 0.9.0[1][2], a Clojure implementation of the AMP[3] protocol (a reference implementation of which is found in Twisted). While slightly off-topic for this list, this project may be of interest to anyone with AMP services they would like to interoperate with from Clojure code. Also, this is the closest thing to an AMP mailing list that exists (at least as far as I'm aware). Despite this being the first release, clj-amp is essentially feature complete. The 0.9.0 version number reflects my reluctance to designate this 1.0.0 for the following reasons: * Lack of users and real-world testing: the project was just released. * API instability: while I do not have any immediate plans to break API compatibility, I would like to reserve the right to make API changes based on initial feedback from users (assuming anyone uses it...) in order to correct any glaring issues with the API that may be discovered. * Minimal test coverage and documentation: I would still like to expand the test coverage to include more specimens of AMP encodings, as well as expand the documentation. Any feedback on the API as well as the documentation would be greatly appreciated. [1] https://github.com/mithrandi/clj-amp [2] https://clojars.org/clj-amp [3] http://amp-protocol.net/ -- mithrandi, i Ainil en-Balandor, a faer Ambar

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[Twisted-Python] Twisted CoAP implementation
by Giacomo Tanganelli April 2, 2015

April 2, 2015

Hi, I have recently implemented a CoAP open source library based on Twisted. I noticed that in the web site there is a page regarding Twisted sub-projects. I'm wondering if I can add my project to such list, I think it could help someone. Does anyone know ho to achieve this? In any case the code is freely available at https://github.com/Tanganelli/CoAPthon Bests Giacomo -- Giacomo Tanganelli PhD Student Dept. Information Engineering Via Diotisalvi 2, I-56122 Pisa, ITALY Phone (direct/switch/fax): +39 050 2217 472 E-mail: g.tanganelli(a)iet.unipi.it

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