Joffily joffilyfe

Golang Job Queue

A running example of the code from:

Step 1

Small refactorings made to original code:

Transforming Code into Beautiful, Idiomatic Python

Notes from Raymond Hettinger's talk at pycon US 2013 video, slides.

The code examples and direct quotes are all from Raymond's talk. I've reproduced them here for my own edification and the hopes that others will find them as handy as I have!

Looping over a range of numbers

for i in [0, 1, 2, 3, 4, 5]:

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	from math import sqrt
	from heapq import heappush, heappop, nsmallest


	class Point:
	def __init__(self, coord, data=None):
	self.coord = coord
	self.data = data
	self.dest = None

	# config/initializers/carrierwave.rb

	require 'mini_magick'

	module CarrierWave
	module MiniMagick
	# round _square_ image
	def round
	manipulate! do \|img\|
	img.format 'png'

	namespace :figaro do
	desc "SCP transfer figaro configuration to the shared folder"
	task :setup do
	on roles(:app) do
	upload! "config/application.yml", "#{shared_path}/application.yml", via: :scp
	end
	end

	desc "Symlink application.yml to the release path"
	task :symlink do

	from fabric.api import env, run, sudo, local, put

	def production():
	"""Defines production environment"""
	env.user = "deploy"
	env.hosts = ['example.com',]
	env.base_dir = "/var/www"
	env.app_name = "app"
	env.domain_name = "app.example.com"
	env.domain_path = "%(base_dir)s/%(domain_name)s" % { 'base_dir':env.base_dir, 'domain_name':env.domain_name }

	#!/bin/bash
	#
	# This script configures WordPress file permissions based on recommendations
	# from http://codex.wordpress.org/Hardening_WordPress#File_permissions
	#
	# Author: Michael Conigliaro <mike [at] conigliaro [dot] org>
	#
	WP_OWNER=www-data # <-- wordpress owner
	WP_GROUP=www-data # <-- wordpress group
	WP_ROOT=$1 # <-- wordpress root directory