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#!/usr/bin/env python

"""Download a file from ftp server."""

import argparse
import logging
import os

from ftplib import FTP_TLS

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/*
 * Only useful in changelist pages when the ModelAdmin displayed has 
 * "list_editable" (https://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.list_editable)
 * configured.
 *
 * When one of the input/select/textarea value is changed, automatically submit
 * the form using ajax.
 *
 * Only form fields relevant to the "list_editable" will trigger a form submit.
 *

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/* Useful celery config.

app = Celery('tasks',
             broker='redis://localhost:6379',
             backend='redis://localhost:6379')

app.conf.update(
    CELERY_TASK_RESULT_EXPIRES=3600,
    CELERY_QUEUES=(
        Queue('default', routing_key='tasks.#'),

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from __future__ import absolute_import, unicode_literals
import os
from celery import Celery
from django.conf import settings

from robot.config import ROBOT_CELERY_BEAT_SCHEDULE


os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'test.settings')

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from django.contrib import admin
from example.models import Example


class ExampleAdmin(admin.ModelAdmin):
    """
    Don't allow addition of more than one model instance in Django admin
    See: http://stackoverflow.com/a/12469482
    """
    def has_add_permission(self, request):

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''' Useage ''''
    # Declare our item
    store = Store.objects.get(pk=pk)
    # Define our models
    stores = Store.objects.all()
    # Ask for the next item
    new_store = get_next_or_prev(stores, store, 'next')
    # If there is a next item
    if new_store:
        # Replace our item with the next one

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import random
import string
from django.utils.text import slugify

def random_string_generator(size=10, chars=string.ascii_lowercase + string.digits):
    return ''.join(random.choice(chars) for _ in range(size))

def unique_slug_generator(instance, new_slug=None):
    if new_slug is not None:
        slug = new_slug

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# coding: utf-8

from django.core.exceptions import ValidationError
from django.core.files.images import get_image_dimensions
from django.utils.translation import ugettext_lazy as _
from django.utils.deconstruct import deconstructible


@deconstructible
class ImageDimensionsValidator: