python code to get title, link, and my comment from a newsblur blurblog feed

gistfile1.py

import os
import re
import sys
import xml.etree.ElementTree
import BeautifulSoup

def exc_wrap(f):
    def inner(*args, **kw):
        try:
            return f(*args, **kw)
        except Exception, e:
            raise
    return inner
    
@exc_wrap
def get_title(e):
    return e.findtext('{http://www.w3.org/2005/Atom}title')
            
@exc_wrap
def get_link(e):
    return e.find('{http://www.w3.org/2005/Atom}link').get('href')

def normtext(el):
    print >>sys.stderr, "normtext", el
    return re.sub("\s+", " ", " ".join(
        se.text or '' for se in el.getiterator()).strip())
            
def bsparse(text):
    soup = BeautifulSoup.BeautifulSoup(text,
            convertEntities=BeautifulSoup.BeautifulSoup.HTML_ENTITIES)
    def emit(soup):
        if isinstance(soup, BeautifulSoup.NavigableString):
            if isinstance(soup, BeautifulSoup.Comment):
                return
            builder.data(soup)
        else:
            builder.start(soup.name, dict(soup.attrs))
            for s in soup:
                emit(s)
            builder.end(soup.name)
    builder = xml.etree.ElementTree.TreeBuilder()
    emit(soup)
    return builder.close()

@exc_wrap
def get_comment(e):
    b = e.find('{http://www.w3.org/2005/Atom}summary').text
    print >>sys.stderr, "<<<", repr(b)
    b = bsparse(b)
    print >>sys.stderr, ">>>", b
    if not b: return
    global gb; gb = b
    b = b[0]
    if b.tag != 'table': return
    if b.get('cellpadding') != "0": return
    if b.get('style') != 'border: 1px solid #E0E0E0; margin: 0; padding: 0; background-color: #F0F0F0': return
    bc = b.getchildren()
    if len(bc) != 2: return
    t0 = normtext(bc[0])
    t1 = normtext(bc[1])
    if t0 != 'jepler shared this story': return
    return t1

def parse_rss(u):
    x = xml.etree.ElementTree.fromstring(u)
    for e in x.findall('{http://www.w3.org/2005/Atom}entry'):
        t = get_title(e)
        l = get_link(e)
        c = get_comment(e)
        print >>sys.stderr, repr(c)
        if t or l or c:
            yield t, l, c