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# Basic support for Atom feeds
'atom:feed': PodcastItem(),
'atom:feed/atom:title': PodcastAttr('title', squash_whitespace),
'atom:feed/atom:subtitle': PodcastAttr('description', squash_whitespace),
'atom:feed/atom:icon': PodcastAttrRelativeLink('cover_url'),
'atom:feed/atom:link': PodcastAtomLink(),
'atom:feed/atom:entry': EpisodeItem(),
'atom:feed/atom:entry/atom:id': EpisodeAttr('guid'),
'atom:feed/atom:entry/atom:title': EpisodeAttr('title', squash_whitespace),
'atom:feed/atom:entry/atom:link': AtomLink(),
'atom:feed/atom:entry/atom:content': AtomContent(),
'atom:feed/atom:entry/content:encoded': EpisodeAttr('description_html'),
'atom:feed/atom:entry/atom:published': EpisodeAttr('published', parse_pubdate),
'atom:feed/atom:entry/atom:updated': EpisodeAttr('published', parse_pubdate, overwrite=False),
'atom:feed/atom:entry/media:group/media:description': EpisodeAttr('description', squash_whitespace),
'atom:feed/atom:entry/psc:chapters': PodloveChapters(),
'atom:feed/atom:entry/psc:chapters/psc:chapter': PodloveChapter(),
}
# Derive valid root elements from the supported MAPPINGs
VALID_ROOTS = set(path.split('/')[0] for path in MAPPING.keys())
class FeedParseError(sax.SAXParseException, ValueError):
"""
Exception raised when asked to parse an invalid feed
This exception allows users of this library to catch exceptions
without having to import the XML parsing library themselves.
"""
pass