Luis Visintini lvisintini

Django Migrations without Downtime

The following instructions describe a set of processes allowing you to run Django database migrations against a production database without having to bring the web service down.

Note that in the below instructions, migrations are all run manually at explicit points, and are not an automatic part of the deployment process.

Adding Fields or Tables

Adding a (nullable) field or a new table

Make the model or column addition in your code.

Django Sprint @ EuroPython

Communication

Join the #django-sprint channel on IRC (Freenode). If IRC won't connect, try the web client at http://webchat.freenode.net/

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real

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	let userLink = row.querySelector('a[data-hovercard-url="/users/' + username + '/hovercard"]')
	if (!userLink) return;

	Object.assign(userLink.style, {
	background: '#3940c3',
	borderRadius: '5px',

	#! /usr/bin/env python3
	"""Fixing bluetooth stereo headphone/headset problem in debian distros.

	Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197
	Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone.

	This will be only fixes the bluez5 problem mentioned above .

	Licence: Freeware

	#! /bin/sh
	### BEGIN INIT INFO
	# Provides: ds4drv
	# Required-Start: $remote_fs
	# Required-Stop: $remote_fs
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: ds4drv daemon
	# Description: ds4drv daemon
	### END INIT INFO

	//usage is pretty simple:

	//1. create a sprite of square images (if the icon is not square, save it inside a square anyway):
	// example: http://glue.readthedocs.org/en/latest/_images/famfamfam2.png

	//2. define sass map with the keys specified:
	$mySprite:(
	url: '../images/mySprite.png',
	names: ('createIcon','player','bell','notifications','icon13','icon15'...), //names of all of the icons in sprite
	itemsInRow: 10, //sprite structure