A minor gripe (seperate from all my other gripes, which other people have alread... | Hacker News

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ekimekim on March 18, 2013 | parent | context | favorite | on: Async I/O for Python 3

A minor gripe (seperate from all my other gripes, which other people have already talked about):

"...run code in another thread - sometimes there is no alternative - eg. getaddrinfo(), database connections"

Just thought I'd mention that async-supporting DNS libs do exist (eg. gevent ships with C-ares), and in particular I've used async postgres database connections in both C and gevent. The code to gevent-ise psycopg2 connections is about 10 or 15 lines, iirc.

masklinn on March 19, 2013 [–]

> The code to gevent-ise psycopg2 connections is about 10 or 15 lines, iirc.

Because psycopg2 has supported async OOTB since 2.2 by exposing a pollable socket: http://initd.org/psycopg/docs/advanced.html#asynchronous-sup...

There are limitations though, as noted by the docs: COPY and LOs don't work.

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