Audrey M. Roy Greenfeld audreyfeldroy

This article is now published on my website: Prefer Subshells for Context.

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

	# Setup dir and repo
	mkdir underscore-string
	cd underscore-string
	git init

	# Make some files we'll need
	touch README.md package.js smart.json

	# Add the submodule and checkout the desired branch
	git submodule add git://github.com/epeli/underscore.string.git lib/underscore.string

	# python file
	import ConfigParser
	config = ConfigParser.ConfigParser()
	config.read('settings.cfg')

	API_KEY = config.get('Params', 'api_key')
	BASE_URL = config.get("Params", 'base_url')

	# settings.cfg
	[Params]

	<!DOCTYPE html>
	<html>
	<head>
	<title>Spiral</title>
	<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script>
	<style type="text/css">

	body {
	font: 10px sans-serif;
	}

	import datetime
	import simplejson

	from pymongo.dbref import DBRef
	from pymongo.objectid import ObjectId


	class MongoEngineEncoder(simplejson.JSONEncoder):
	"""Handles Encoding of ObjectId's"""

	#!/bin/sh
	#
	# Copyright (c) 2011, Jonas Obrist
	# All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions are met:
	# * Redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer.
	# * Redistributions in binary form must reproduce the above copyright

	$less-column-width: 68px;
	$less-gutter-width: 24px;

	@function column-width($columns) {
	@return ($less-column-width * $columns) + ($less-gutter-width * ($columns - 1));
	}

	@function grid-padding-px($columns) {
	@if $columns == 10 {
	@return 48px;