#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Convert XML list of podcasts to a CSV file.
     """
     #end_pymotw_header
     
     import csv
     from xml.etree.ElementTree import iterparse
     import sys
     
     writer = csv.writer(sys.stdout, quoting=csv.QUOTE_NONNUMERIC)
     
     group_name = ''
     
     for (event, node) in iterparse('podcasts.opml', events=['start']):
         if node.tag != 'outline':
             # Ignore anything not part of the outline
             continue
         if not node.attrib.get('xmlUrl'):
             # Remember the current group
             group_name = node.attrib['text']
         else:
             # Output a podcast entry
             writer.writerow( (group_name, node.attrib['text'],
                               node.attrib['xmlUrl'],
                               node.attrib.get('htmlUrl', ''),
                               )
                              )