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Re: asyncio - run coroutine in the background

From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Subject Re: asyncio - run coroutine in the background
Date 2016-02-20 20:02 +1100
Message-ID <mailman.19.1455958942.13884.python-list@python.org> (permalink)
References (11 earlier) <871t877ru6.fsf@jester.gateway.pace.com> <87oabbpzoo.fsf@elektro.pacujo.net> <87twl36amj.fsf@jester.gateway.pace.com> <mailman.18.1455958339.13884.python-list@python.org> <87io1jpxjw.fsf@elektro.pacujo.net>

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On Sat, Feb 20, 2016 at 7:59 PM, Marko Rauhamaa <marko@pacujo.net> wrote:
> Chris Angelico <rosuav@gmail.com>:
>
>> In a (non-Python) program of mine, I got annoyed by synchronous name
>> lookups, so I hacked around it: instead of using the regular library
>> functions, I just do a DNS lookup directly (which can then be
>> event-based - send a UDP packet, get notified when a UDP packet
>> arrives). Downside: Ignores /etc/nsswitch.conf and /etc/hosts, and
>> goes straight to the name server. Upside: Is able to do its own
>> caching, since the DNS library gives me the TTLs, but
>> gethostbyname/getaddrinfo won't.
>
> Ditto in a Python program of mine, although I don't bother with caching:
> the DNS server is perfectly capable of caching the entries for me.

If you know you have a local DNS server, sure. Mine is written for a
generic situation where that can't be depended on, so it caches
itself. But it's no big deal.

ChrisA

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Thread

asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-15 08:35 +0200
  Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-15 08:54 +0200
    Re: asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-15 09:16 +0200
      Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-15 09:34 +0200
      Re: asyncio - run coroutine in the background Paul Rubin <no.email@nospam.invalid> - 2016-02-14 23:39 -0800
        Re: asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-15 10:17 +0200
        Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-15 13:05 +0200
        Re: asyncio - run coroutine in the background Chris Angelico <rosuav@gmail.com> - 2016-02-16 16:51 +1100
        Re: asyncio - run coroutine in the background Kevin Conway <kevinjacobconway@gmail.com> - 2016-02-16 13:22 +0000
          Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 16:17 +0200
            Re: asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-16 16:36 +0200
            Re: asyncio - run coroutine in the background Kevin Conway <kevinjacobconway@gmail.com> - 2016-02-16 14:54 +0000
            Re: asyncio - run coroutine in the background Steven D'Aprano <steve@pearwood.info> - 2016-02-17 02:17 +1100
              Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 19:12 +0200
                Re: asyncio - run coroutine in the background Paul Rubin <no.email@nospam.invalid> - 2016-02-17 20:38 -0800
                Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-18 08:10 +0200
              Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 19:13 +0200
              Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 19:14 +0200
              Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 19:15 +0200
                Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 19:15 +0200
                Re: asyncio - run coroutine in the background Robin Becker <robin@reportlab.com> - 2016-02-16 17:52 +0000
            Re: asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-16 17:21 +0200
              Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-16 19:20 +0200
                Re: asyncio - run coroutine in the background Paul Rubin <no.email@nospam.invalid> - 2016-02-19 23:40 -0800
                Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-20 10:13 +0200
                Re: asyncio - run coroutine in the background Paul Rubin <no.email@nospam.invalid> - 2016-02-20 00:37 -0800
                Re: asyncio - run coroutine in the background Chris Angelico <rosuav@gmail.com> - 2016-02-20 19:52 +1100
                Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-20 10:59 +0200
                Re: asyncio - run coroutine in the background Chris Angelico <rosuav@gmail.com> - 2016-02-20 20:02 +1100
                Re: asyncio - run coroutine in the background Marko Rauhamaa <marko@pacujo.net> - 2016-02-20 11:28 +0200
                Re: asyncio - run coroutine in the background Kevin Conway <kevinjacobconway@gmail.com> - 2016-02-20 13:52 +0000
                Re: asyncio - run coroutine in the background "Martin A. Brown" <martin@linux-ip.net> - 2016-02-20 09:45 -0800
                Re: asyncio - run coroutine in the background Chris Angelico <rosuav@gmail.com> - 2016-02-21 08:47 +1100
            Re: asyncio - run coroutine in the background Chris Angelico <rosuav@gmail.com> - 2016-02-17 02:28 +1100
            Re: asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-16 17:45 +0200
        Re: asyncio - run coroutine in the background "Frank Millman" <frank@chagford.com> - 2016-02-16 15:52 +0200

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