Felipe Martin fmartingr

Install Python2.7 on Centos with PUIAS

Create puias-computational.repo file:

$ vim /etc/yum.repos.d/puias-computational.repo

Paste the following code into the above file:

Moved

Now located at https://github.com/JeffPaine/beautiful_idiomatic_python.

Why it was moved

Github gists don't support Pull Requests or any notifications, which made it impossible for me to maintain this (surprisingly popular) gist with fixes, respond to comments and so on. In the interest of maintaining the quality of this resource for others, I've moved it to a proper repo. Cheers!

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

Moving from jQuery

Events

// jQuery
$(document).ready(function() {
  // code
})

	Hostnames!

	You have to set up a bunch of machines, and suddenly have a mental block as to what to call them all?
	Well, here's some good hostnames to get you going.

	The idea is to come up with some kind of category, so that people have something to remember all the names by. Some categories: Geographical (countries, cities, parks, rivers, lakes, streets), entertainment (flintsones, simpsons, disney films, celebrities), companies (hotels, airports, local shops, restarants), astronomy (planets, comets, space missions), literature (mythology, philosophers, writers of particular generes, languages), political (presidents, judges, congressmen, terminology), science (units of measure, anatomy, instruments, scientists), industry (tools, machines, inventions, inventors), computers (terminology, programming languages, number systems).

	Some hostnames I've seen, used, or expect to use..
	(Not responsible for typos; do your own spell checks!)

	####################################
	# BASIC REQUIREMENTS
	# http://graphite.wikidot.com/installation
	# http://geek.michaelgrace.org/2011/09/how-to-install-graphite-on-ubuntu/
	# Last tested & updated 16. June 2013
	####################################

	# This is apparantly needed for python when running manage.py
	# described here: http://stackoverflow.com/questions/11593556/django-createsuperuser-not-working
	export LANG=en_US.UTF-8

	function archiveInbox() {
	var query = 'label:inbox is:read older_than:28d -label:unanswered -label:unread';
	var batchSize = 100;

	while(GmailApp.search(query, 0, 1).length == 1) {
	GmailApp.moveThreadsToArchive(GmailApp.search(query, 0, batchSize));
	}
	}

	# Vagrant commands
	vagrant reload #!
	vagrant status
	vagrant suspend
	vagrant resume
	vagrant halt
	vagrant up
	vagrant package
	vagrant destroy
	vagrant box add <nombre> <url>

	# Orignal version taken from http://www.djangosnippets.org/snippets/186/
	# Original author: udfalkso
	# Modified by: Shwagroo Team and Gun.io

	import sys
	import os
	import re
	import hotshot, hotshot.stats
	import tempfile
	import StringIO