def create_feed_from_url(url):
""" Query the given URL, parse the results and create a Feed object. If
the response isn't RSS then throw an error """
f = feedparser.parse(url)
# Handle obvious errors
if f.bozo:
handle_bozo_exception(f.bozo_exception)
if 'status' in f and f.status in (200, 301, 302):
# If we received a bozo exception raise it
if f.bozo:
handle_bozo_exception(f.bozo_exception)
# If the resource has permanently moved update it's URL
feed_url = url
if f.status == 301:
feed_url = f.href
feed = Feed(parent=root_key(), name=f.channel.title, url=feed_url)
if len(f.entries) > 0:
feed.date_of_last_entry = datetime.fromtimestamp(
mktime(f.entries[0].updated_parsed))
return feed
else:
raise Exception("Unexpected result from feedparser.parse(): %s" % f)
