feedparser.py 文件源码

def __getitem__(self, key):
        if key == 'category':
            return UserDict.__getitem__(self, 'tags')[0]['term']
        if key == 'enclosures':
            norel = lambda link: FeedParserDict([(name,value) for (name,value) in link.items() if name!='rel'])
            return [norel(link) for link in UserDict.__getitem__(self, 'links') if link['rel']=='enclosure']
        if key == 'license':
            for link in UserDict.__getitem__(self, 'links'):
                if link['rel']=='license' and link.has_key('href'):
                    return link['href']
        if key == 'categories':
            return [(tag['scheme'], tag['term']) for tag in UserDict.__getitem__(self, 'tags')]
        realkey = self.keymap.get(key, key)
        if type(realkey) == types.ListType:
            for k in realkey:
                if UserDict.__contains__(self, k):
                    return UserDict.__getitem__(self, k)
        if UserDict.__contains__(self, key):
            return UserDict.__getitem__(self, key)
        return UserDict.__getitem__(self, realkey)