Mailman 3 December 2024 - Twisted

(tiny) twisted success story
by Kirill Miazine Jan. 7, 2025

Jan. 7, 2025

Hello, world! I'm very happy to be using Twisted again -- after a break of about 20 years! In ol' days I did mailing lists in Twisted, implemented Dovecot AUTH protocol in Twisted and a lot more. Mostly it was mail related. A lot have been forgotten and have to be re-discovered. A couple of words about use-case: I was curious about what could be achieved using the filtering facility in the OpenSMTPD MTA. The filters are programs which are executed by the daemon, and some data is exchanged on stdin/stdout using non-blocking fashion. More at https://man.openbsd.org/smtpd-filters I tried getting Python asyncio to work at first, even using aioconsole package, but I kept hitting something which made the thing break after handshake exchange. This evening I did a rewrite in Twisted, it took me a couple of hours, but the was running on the first try! Thanks for all the fish! -- Kirill

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typo on "Configuring and Using the Twisted Web Server"
by Kirill Miazine Dec. 29, 2024

Dec. 29, 2024

While browsing through the twisted.web docs, I noticed following: Hello's getChild() method on https://docs.twisted.org/en/stable/web/howto/using-twistedweb.html#resource… has a typo. It says if name == '': where it should have said: if name == b'': Greetz Kirill

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INCOMPATIBLE CHANGE: Removal of TestCase.defer{SetUp, TestMethod, TearDown, RunCleanups} methods
by povilas＠radix.lt Dec. 13, 2024

Dec. 13, 2024

Hi, I created this PR to remove TestCase.defer{SetUp, TestMethod, TearDown, RunCleanups} methods: https://github.com/twisted/twisted/pull/12389 The justification is as follows: Currently `TestCase` has the following functions that are presumably public due to their naming: `deferSetUp`, `deferTestMethod`, `deferRunCleanups` and `deferTearDown`. This raises a few problems. I suggest removing the functions without deprecation period due to the following reasons: - these functions expose so much of the internal structure of TestCase that it makes the code hard to change (e.g. https://github.com/twisted/twisted/pull/12375 cannot go in) - there is no case where the functions would be useful as an extension point. The only use of the functions that I found using Github code search is my own code in the Buildbot project which overrides `deferRunCleanups` and hooks even deeper into TestCase internals. - the API is not "public ready" (i.e. the `ignored` parameter) - it seems as if they were some kind of internal thing that simply didn't get the `_` prefix. - deprecation would be harder to implement than usual, due to the functions being supposed to be overridden, not just called. - this is API for tests, so it is not likely to break functionality that is used in production. Only development workflows may be affected where the fix is to update the tests. Given the above - small risk of breaking code for someone and relatively high costs for going through the deprecation dance I would suggest to have an exception for this change and allow to remove the functions without deprecation period. If you have any objections and you think that the functions should stay or at least be removed via deprecation please let me know. You can send your feedback by replying to this email or add your comment to the PR https://github.com/twisted/twisted/pull/12389 Thanks for your time! Regards, Povilas

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