Simon Willison’s Weblog

Items tagged python in Dec, 2007

Filters: Year: 2007 × Month: Dec × python ×

django-mptt (via) Jonathan Buchanan’s simple utility for performing Modified Preorder Tree Traversal (efficient tree operations in SQL) on Django models. # 29th December 2007, 11:33 am

I definitely like Python 3K’s Unicode support better [...] In fact, I think I prefer Ruby 1.8’s non-support for Unicode over Ruby 1.9’s “support”. The problem is one that is all to familiar to Python programmers. You can have a fully unit tested library and have somebody pass you a bad string, and you will fall over.

Sam Ruby # 28th December 2007, 7:05 pm

Django and Comet. How to build a chat application using Django and the Orbited comet server. Orbited can be set up to proxy most requests through to a Django backend while handling any comet requests itself. # 26th December 2007, 9:05 pm

IPy. Handy Python module for manipulating IP addresses—use IP(ip_addr).iptype() == ’PUBLIC’ to check that an address isn’t in a private address range. # 24th December 2007, 1:19 pm

Size Is The Enemy. Jeff Atwood: “I’ve started a cottage industry mining Steve [Yegge]’s insanely great but I-hope-you-have- an-hour-to-kill writing and condensing it into its shorter form points.” Lots of verbose static typing apologists in the comments. # 24th December 2007, 10:50 am

WebOb. WebOb is “an extraction and refinement of pieces from Paste”—provides a very nice request and response object, clearly inspired partly by Django. The documentation includes the differences between the WebOb API and that of other frameworks. # 23rd December 2007, 10:22 am

Speeding up dateutil: Python’s heapq module turns minutes into seconds. Neat case study in data structure optimisation. # 22nd December 2007, 1:07 pm

Pvote (via) Electronic voting machine software in 460 lines of highly readable Python (using Pygame), implemented by Ka-Ping Yee for his doctoral dissertation. Demonstrates prerendering, where as much of the UI as possible is defined in a separate ballot definition file. # 22nd December 2007, 1:04 pm

Using Unipath to Keep Things Portable. Django tip to avoid hard-coding full paths. I usually set a global called OUR_ROOT in using os.path.dirname(__file__) and use os.path.join with it to construct any other paths that I need. # 21st December 2007, 10:45 am

Misapplying book terms, Pylons, and the ’end-user’. Ben Bangert responds to Adam Gomaa’s claim that Pylons lacks “conceptual integrity”. # 19th December 2007, 11:09 am

Frameworks Exist for Conceptual Integrity. Adam Gomaa just taught me a bunch of interesting things about Django’s underlying philosophy. Looks like I need to re-read the Mythical Man-Month. # 17th December 2007, 1:58 pm

The future of web standards. Nice analysis from James Bennett, who suggests that successful open source projects (Linux, Python, Perl etc) could be used as the model for a more effective standards process, and points out that Ian Hickson is something of a BDFL for the WHAT-WG. # 17th December 2007, 1:16 pm

Chapter 7: Form Processing. The chapter on newforms I contributed to “The Definitive Guide to Django” is now online, along with the rest of the published book. # 16th December 2007, 9:44 pm

stompserver. I think this is the lightweight message queue I’ve been looking for: written in Ruby and EventMachine, easy to set up (thanks to gems), interoperates perfectly with # 14th December 2007, 4:40 pm

Two-Faced Django. Excellent Django tutorial by Will Larson that shows how to build a polling application with an interface both on the Web and in Facebook. Also touches on unit testing and Ajax using jQuery. # 14th December 2007, 2:44 pm

Updates to template_utils. James Bennett’s Django template_utils library now provides tags for consuming external RSS and Atom feeds. Combine with template fragment caching for an instant mashup written just using templates. # 10th December 2007, 3:25 pm

Django snippets: Authenticate against Active Directory. Uses a custom authentication backend with the Python ldap module. If Django hasn’t seen the user before a new Django user account is created with data from ldap. # 10th December 2007, 8:40 am

Django Basic Apps. Nathan Borror has released a suite of simple, reusable Django applications: Basic Blog, Basic Places, Basic People, Basic Library and Basic Profiles. # 5th December 2007, 3:30 pm

xkcd: Python. Just type “import antigravity”. # 5th December 2007, 6:09 am

Datejs—A JavaScript Date Library. Building a date API around chaining——is a neat concept. I’d like to see that adapted for Python’s datetime library. # 3rd December 2007, 9:01 pm

If you only remember one thing about handling non-HTML output via Django: know that you can use the HttpResponse object as if it were a file. Writing to such an object and returning it will give you the output you wrote. It’s a very simple concept, but one that translates well to third-party libraries.

Alex de Landgraaf # 3rd December 2007, 8:44 pm

First Notes on Django. Cool, the IETF are developing internal tools with Django. # 3rd December 2007, 11:38 am