bit.ly templatetag for Django

bitly.py

# coding: utf-8
import bitly_api

from django import template
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured

register = template.Library()

try:
	BITLY_LOGIN = settings.BITLY_LOGIN
	BITLY_API_KEY = settings.BITLY_API_KEY
except AttributeError:
	raise ImproperlyConfigured('Missing bitly login or api key')


@register.filter
def bitly_shorten(url):
	bitly = bitly_api.Connection(BITLY_LOGIN, BITLY_API_KEY)

	try:
		return bitly.shorten(url)['url']
	except:
		return ''