Atom 内の ID によるダイジェスト
rss_sum が要るなら atom_sum も当然要るよねと.
def atom_sum(s): from xml.dom import pulldom from hashlib import md5 acc = [] p = pulldom.parseString(xml_encoding_hack(s)) for (e, n) in p: if (e == pulldom.START_ELEMENT) and (n.tagName == 'entry'): p.expandNode(n) l = n.getElementsByTagName('id') acc.append(l[0].firstChild.data) return md5('\0'.join(acc)).hexdigest()