http://simonwillison.net/2021-05-02T02:49:51+00:00Simon Willison2021-05-02T02:49:51+00:002021-05-02T02:49:51+00:00https://simonwillison.net/2021/May/2/query-engines-push-vs-pull/#atom-tag

<p><strong><a href="http://justinjaffray.com/query-engines-push-vs.-pull/">Query Engines: Push vs. Pull</a></strong></p> Justin Jaffray (who has worked on Materialize) explains the difference between push and pull query execution engines using some really clear examples built around JavaScript generators. <p><small></small>Via <a href="https://news.ycombinator.com/item?id=27006476">Hacker News</a></small></p> <p>Tags: <a href="https://simonwillison.net/tags/databases">databases</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/javascript">javascript</a></p>

2019-04-09T17:13:48+00:002019-04-09T17:13:48+00:00https://simonwillison.net/2019/Apr/9/generator-tricks-for-systems-programmers/#atom-tag

<p><strong><a href="https://github.com/dabeaz/generators">Generator Tricks for Systems Programmers</a></strong></p> David Beazley’s definitive generators tutorial from 2008, updated for Python 3.7 in October 2018. <p><small></small>Via <a href="https://twitter.com/python_tip/status/1115630193702395904">@python_tip</a></small></p> <p>Tags: <a href="https://simonwillison.net/tags/david-beazley">david-beazley</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/python">python</a></p>

2009-10-25T23:30:20+00:002009-10-25T23:30:20+00:00https://simonwillison.net/2009/Oct/25/twisted/#atom-tag

<p><strong><a href="http://blog.mekk.waw.pl/archives/14-Twisted-inlineCallbacks-and-deferredGenerator.html">Twisted inlineCallbacks and deferredGenerator</a></strong></p> inlineCallbacks are a brilliant (but seemingly under-promoted) feature of Twisted which use the ability to return a value from a yield statement to make asynchronous callbacks look much more like regular sequential programming. <p>Tags: <a href="https://simonwillison.net/tags/async">async</a>, <a href="https://simonwillison.net/tags/callbacks">callbacks</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/python">python</a>, <a href="https://simonwillison.net/tags/twisted">twisted</a>, <a href="https://simonwillison.net/tags/yield">yield</a></p>

2009-09-23T17:15:42+00:002009-09-23T17:15:42+00:00https://simonwillison.net/2009/Sep/23/diesel/#atom-tag

<p><strong><a href="http://dieselweb.org/lib/">Diesel</a></strong></p> Yet Another Asynchronous Python Comet Library, of interest because this is the first one I’ve seen that uses Python’s generator coroutines, taking advantage of the return value of the yield statement to feed messages in to a generator function. Currently only works on Python 2.6 on Linux due to a dependency on 2.6’s epoll support. <p>Tags: <a href="https://simonwillison.net/tags/async">async</a>, <a href="https://simonwillison.net/tags/comet">comet</a>, <a href="https://simonwillison.net/tags/diesel">diesel</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/python">python</a></p>

2009-04-24T10:58:42+00:002009-04-24T10:58:42+00:00https://simonwillison.net/2009/Apr/24/coroutines/#atom-tag

<p><strong><a href="http://www.dabeaz.com/coroutines/index.html">A Curious Course on Coroutines and Concurrency</a></strong></p> David Beazley’s sequel to last year’s mind-expanding “Generator Tricks for System Programmers”, perfect for if you’ve ever puzzled over what exactly you can use Python’s generator-based coroutine support for. <p>Tags: <a href="https://simonwillison.net/tags/concurrency">concurrency</a>, <a href="https://simonwillison.net/tags/coroutines">coroutines</a>, <a href="https://simonwillison.net/tags/david-beazley">david-beazley</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/python">python</a></p>

2008-05-31T14:14:56+00:002008-05-31T14:14:56+00:00https://simonwillison.net/2008/May/31/lastfm/#atom-tag

<p><strong><a href="http://blog.last.fm/2008/05/29/python-hadoop-flying-circus-elephant">Python + Hadoop = Flying Circus Elephant</a></strong></p> Last.fm have released Dumbo, a Python module that lets you easily write Hadoop map/reduce tasks using Python and generators. <p>Tags: <a href="https://simonwillison.net/tags/dumbo">dumbo</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/hadoop">hadoop</a>, <a href="https://simonwillison.net/tags/lastfm">lastfm</a>, <a href="https://simonwillison.net/tags/mapreduce">mapreduce</a>, <a href="https://simonwillison.net/tags/python">python</a></p>

2008-04-24T10:17:07+00:002008-04-24T10:17:07+00:00https://simonwillison.net/2008/Apr/24/generators/#atom-tag

<p><strong><a href="http://www.dabeaz.com/generators/index.html">Generator Tricks for Systems Programmers</a></strong></p> The best tutorial on Python’s powerful generator feature I’ve seen anywhere. <p>Tags: <a href="https://simonwillison.net/tags/david-beazley">david-beazley</a>, <a href="https://simonwillison.net/tags/generators">generators</a>, <a href="https://simonwillison.net/tags/python">python</a></p>