def __getitem__(self, key):
"""Retrieve a feed."""
if isinstance(key, int):
for feed in self._members:
if feed.id == key:
return feed
else:
raise KeyError, key
else:
normurl = urlnorm.normalize(key)
return self.feeds_by_normalized_url[normurl]
def normalize(cls, url):
try:
return cls.__cache[url]
except KeyError:
return urlnorm.normalize(url)
def has_feed_url(self, url):
return self.has_feed_normurl(urlnorm.normalize(url))