juanriaza

def nested_commit_on_success(func):
    """Like commit_on_success, but doesn't commit existing transactions.

    This decorator is used to run a function within the scope of a 
    database transaction, committing the transaction on success and
    rolling it back if an exception occurs.

    Unlike the standard transaction.commit_on_success decorator, this
    version first checks whether a transaction is already active.  If so
    then it doesn't perform any commits or rollbacks, leaving that up to

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def euclides(a,b):
        return a if b == 0 else euclides(b, a%b)

def euclides_ext(a,b):
    if b == 0:
        return [1,0,a]
    else:
        x,y,d = euclides_ext(b, a%b)
    return [y, x - (a//b)*y, d]

juanriaza

function r(f){/in/(document.readyState)?setTimeout(r,9,f):f()}

juanriaza

Gist Clients

Want to create a Gist from your editor, the command line, or the Services menu? Here's how.

Editor Support

• TextMate
• Emacs
• Vim
• Coda

juanriaza

from django.db import models
from django.db.models import signals

class DeletingFileField(models.FileField):
    """
    FileField subclass that deletes the refernced file when the model object
    itself is deleted.
    
    WARNING: Be careful using this class - it can cause data loss! This class
    makes at attempt to see if the file's referenced elsewhere, but it can get

juanriaza

"""
jQuery templates use constructs like:

    {{if condition}} print something{{/if}}

This, of course, completely screws up Django templates,
because Django thinks {{ and }} means something.

Wrap {% verbatim %} and {% endverbatim %} around those
blocks of jQuery templates and this will try its best

juanriaza

from collections import Counter
from itertools import product

print('\n'.join('*'*(c//2000) for i,c in
    sorted(Counter(map(sum, product(range(6), repeat=8))).items())))

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# Custom DB backend postgresql_psycopg2 based
# implements persistent database connection using thread local storage
from threading import local

from django.db.backends.postgresql_psycopg2.base import DatabaseError, \
    DatabaseWrapper as BaseDatabaseWrapper, IntegrityError
from psycopg2 import OperationalError

threadlocal = local()

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# -*- coding: utf-8 -*-

from gevent import monkey
monkey.patch_all()

from gevent.pool import Group
import urllib2

# Estos urls estan en una lista, pero podrias leerlos de un archivo o obtenerlos de cualquier lado
urllist = [

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## Copyright (C) 2011 by Jiang Yio <http://inportb.com/>
## Please find instructions at <http://wiki.inportb.com/python:geventreactor>
## The latest code is available at <https://gist.github.com/848058>
##
## Permission is hereby granted, free of charge, to any person obtaining a copy
## of this software and associated documentation files (the "Software"), to deal
## in the Software without restriction, including without limitation the rights
## to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
## copies of the Software, and to permit persons to whom the Software is
## furnished to do so, subject to the following conditions: