Simon Willison’s Weblog

Items tagged python in Nov

Filters: Month: Nov × python ×


How to Make a US County Thematic Map Using Free Tools. This is the trick I’ve been using to generate choropleths at the Guardian for the past year: figure out the preferred colours for a set of data in a Python script and then rewrite an SVG file to colour in the areas. I use ElementTree rather than BeautifulSoup but the technique is exactly the same. The best thing about SVG is that our graphics department can export them directly out of Illustrator, with named layers and paths automatically becoming SVG ID attributes. Bonus tip: sometimes you don’t have to rewrite the SVG XML at all, instead you can generate CSS to colour areas by ID selector and inject it in to the top of the file. # 12th November 2009, 10:49 am

Writing good documentation (part 1). Jacob explains some of the philosophy behind Django’s documentation. Topical guides are particularly interesting—many projects skip them (leaving books to fill the gap) but they fill an essential gap between tutorials and low-level reference documentation. # 11th November 2009, 7:13 am

A history of Python packaging. A comprehensive history by Martijn Faassen, who argues that the existing set of tools tools works fine and has been working fine for several years. # 10th November 2009, 8:48 pm

Fabric 0.9.0. A Python-based SSH automation and deployment tool. Released today, 0.9.0 is finally the official “stable” release—which is good, as it breaks API compatibility with previous versions and caused me all sorts of confusion when I tried to learn Fabric recently. # 9th November 2009, 2:02 pm

Django-Jython 1.0.0 released! Now with database backends for PostgreSQL, Oracle and MySQL. The next release (planned for next month) should provide full compatibility with Django 1.1—the current release has 1.1 support for PostgreSQL but only 1.0 support for the other two databases. # 9th November 2009, 1:53 pm

Python in the Scientific World. Python continues to make strides in the scientific world—and the Hubble Space Telescope team have been using it for 10 years! # 6th November 2009, 11:04 am

Frank Wierzbicki: Leaving Sun. Frank performed miracles at Sun and before, helping bring the Jython project out of stasis and turning it in to an active, community maintained modern Python implementation. If you’re looking for an expert Python/Java/Dynamic languages guy you should snap him up. # 4th November 2009, 10:33 pm

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

Exploring Python (via) Notes from the introduction to Python presentation I gave today at Stack Overflow DevDays Amsterdam. # 2nd November 2009, 3:35 pm

pudb. A full-screen, curses console based visual debugger for Python, built using the urwid console UI library. # 1st November 2009, 12:09 pm

Django 1.0.2 released. An update to last week’s 1.0.1 release, which I failed to link to. 1.0.2 mainly fixes some packaging issues, while 1.0.1 contains “over two hundred fixes to the original Django 1.0 codebase”. The team are holding up the promise to move to a regular release cycle after 1.0. # 19th November 2008, 8:46 am

The new Lawrence.com. The world’s best local entertainment website, relaunched on Django 1.0 with an accompanying substantial redesign. # 18th November 2008, 2:25 pm

Secrets of the Django ORM. An undocumented (and unsupported) method of poking a Django QuerySet’s internal query to add group_by and having clauses to a SQL query. # 8th November 2008, 11:49 pm

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

Oxford Geek Night 4. Tomorrow night, usual venue. Topics include mySociety, Pylons, MythTV and more. # 27th November 2007, 9:04 pm

sorl-thumbnail. This looks like a decent attempt at a generic Django thumbnailing service, but I’m always wary of code that allows URL hackers to create large numbers of files that will be cached to disk. UPDATE: My mistake, thumbnail creation can only be caused by template authors. # 27th November 2007, 7:17 pm

Using django.newforms with Pylons. It’s always good to see Django components used outside of the framework itself. For the record, you can avoid the DJANGO_SETTINGS_MODULE environment variable entirely using django.conf.settings.configure (search for it). # 27th November 2007, 3:01 pm

Eventlet—Second Life Wiki. Seriously powerful non-blocking IO library for Python, currently maintained by Linden Lab as part of the server architecture used for Second Life. # 26th November 2007, 3:21 pm

Newforms, part 1. James Bennett provides a detailed description of Django’s newforms (not so new now though, they’ve been around for over a year), complete with attractive diagrams. # 23rd November 2007, 11:54 pm

Mock—Mocking and Test Utilities (via) New mocking library for Python based on the “action ... assertion” pattern (as opposed to the more common “record ... replay”). # 20th November 2007, 11:30 pm

Professional Python Frameworks: Web 2.0 Programming with Django and Turbogears. Apparently published by Wrox in October 2007, beating the “official” Django book by just over a month. Has anyone seen this on bookshelves yet? # 16th November 2007, 9:16 pm

Django Changeset 6671. Malcolm Tredinnick: “Implemented auto-escaping of variable output in templates”. Fantastic—Django now has protection against accidental XSS holes, turned on by default. # 14th November 2007, 5:05 pm

Django Book Update. It’s done! Went to the printer on Friday, due in bookstores in the second week of December (just in time for Christmas). Congrats to Adrian and Jacob. # 14th November 2007, 12:59 am

Reinteract—Better interactive Python. Really neat Mathematica-style pygtk interactive prompt for Python, where previous lines can be edited in place and graphs and other graphical primitives can be displayed inline. Includes an elegant plugin mechanism. # 12th November 2007, 12:55 pm

Orbited: The Orbit Event Daemon. HTTP daemon designed for long-lasting comet connections, written in Python using pyevent on top of libevent. # 9th November 2007, 11:01 pm

Django documentation bookmarklets. James Bennett continues his month-long series of daily Django tutorials with documentation for one of Django’s best kept secrets: application introspection HTTP headers and bookmarklets that make use of them. # 8th November 2007, 10:59 am

Hello Revver.com 2.0. Revver, one of the more established video startups, have launched their new version which is powered by Django. # 2nd November 2007, 7:03 am

PyObjC 2.0 changes (via) All the good stuff that’s in PyObjC 2.0, released as part of Leopard. According to bbum this is the most significant release of PyObjC in 7 years. # 2nd November 2007, 6:18 am

Incompatible SQLite in OS X and Python. I’ve hit this problem; James has the solution. # 28th November 2006, 5:40 pm

Python Natural Language Toolkit (via) Yet another reason Python at University is a great idea # 23rd November 2003, 11:54 pm