Simon Willison’s Weblog

Announcing Kong: A server description and deployment testing tool. An ultra simple website monitoring tool written in Django which makes it easy to manage a list of Twill scripts for testing different sites. It was developed at the Lawrence Journal-World—Eric showed me a demo if this a year or so ago and I’ve been hoping they would open source it. 18th November 2009, 12:47 pm

Correct way to handle mobile browsers. If your site has an equivalent “mobile” version running on a different subdomain, how and when should you redirect mobile users to it and how should you let them opt in or opt out? 10th November 2009, 8:57 am

Large Problems in Django, Mostly Solved: Search. Eric Holscher shows how Haystack uses a number of common Django patterns (object registration, pluggable backends, QuerySet-style chaining and class-based views) to great effect in creating a powerful search application for Django. Makes me wonder if more of those patterns should be promoted to first class concepts within Django. 3rd November 2009, 10:42 am

Debugging Django in Production Revisited. Eric Holscher expands his show-technical-errors-to-superusers middleware to only show them to users in the group named “Technical Errors”. 7th September 2009, 5:21 am

Django now has fast tests. Changeset 9756 switched Django’s TestCase class to running tests inside a transaction and rolling back at the end (instead of doing a full dump and reload). “Ellington’s test suite, which was taking around 1.5-2 hours to run on Postgres, has been reduced to 10 minutes.” 16th January 2009, 11:40 am

Python gems of my own (via) Did you know you can pass 128 as a flag to Python’s re.compile() function to spit out a parse tree? I didn’t. re.compile(“pattern”, 128) 3rd November 2008, 11:59 am