dcramer

class QuerySetDoubleIteration(Exception):
    "A QuerySet was iterated over twice, you probably want to list() it."
    pass


# "Skinny" here means we use iterator by default, rather than
# ballooning in memory.
class SkinnyManager(Manager):
    def get_query_set(self):
        return SkinnyQuerySet(self.model, using=self._db)

simonw

"""
Here's how to run a command from Python piping a string in to stdin and reading the 
output back in to another string. It took me way too long to work this out.
"""

from subprocess import Popen, PIPE

output = Popen(
    ['java', '-jar', 'yuicompressor-2.4.2.jar', '--type=css'], 
    stdin=PIPE, stdout=PIPE

ericflo

import simplejson

from django.contrib.sessions.backends.base import SessionBase, CreateError

from django_ext.redis_helper import get_redis


class SessionStore(SessionBase):
    """
    A Redis-based session store.

dcramer

from django.db.models.signals import post_init

def track_data(*fields):
    """
    Tracks property changes on a model instance.
    
    The changed list of properties is refreshed on model initialization
    and save.
    
    >>> @track_data('name')

mikeyk

from django.contrib.sessions.backends.base import SessionBase, CreateError
from django.conf import settings
from django.utils.encoding import force_unicode
import redis

class SessionStore(SessionBase):
    """ Redis store for sessions"""

    def __init__(self, session_key=None):
        self.redis = redis.Redis(

dalecaru

#!/bin/sh
# 
# Script to prepare and restore full and incremental backups created with innobackupex-runner.
#
# This script is provided as-is; no liability can be accepted for use.
#

INNOBACKUPEX=innobackupex-1.5.1
INNOBACKUPEXFULL=/usr/bin/$INNOBACKUPEX
TMPFILE="/tmp/innobackupex-restore.$$.tmp"

irae

#Stay Standalone

A short script to prevent internal links to a "webapp" added to iPhone home screen to open in Safari instead of navigating internally.

ymirpl

#coding: utf-8
from cStringIO import StringIO
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.header import Header
from email import Charset
from email.generator import Generator
import smtplib
 
# Example address data

wesbos

var page = new WebPage(),
    address, output, size;

  address = "http://www.metachunk.com/";
  width = 1024; height = 600;
  output = "./screenshots/wat-"+width+"X"+height+".png";


  page.viewportSize = { width: width, height: height };
  if (phantom.args.length === 3 && phantom.args[1].substr(-4) === ".pdf") {

ruckus

WAL-E needs to be installed on all machines, masters and slaves.

How to install WAL-E

Only one machine, the master, writes WAL segments via continuous archiving. The configuration for the master postgresql.conf is:

archive_mode = on
archive_command = 'envdir /etc/wal-e.d/env wal-e wal-push %p'
archive_timeout = 60