Feed Type and Version Detection =============================== :program:`Universal Feed Parser` attempts to autodetect the type and version of the feeds it parses. There are many subtle and not-so-subtle differences between the different versions of :abbr:`RSS (Rich Site Summary)`, and applications may choose to handle different feed types in different ways. Accessing feed version ---------------------- :: >>> d = feedparser.parse('http://feedparser.org/docs/examples/atom10.xml') >>> d.version 'atom10' >>> d = feedparser.parse('http://feedparser.org/docs/examples/atom03.xml') >>> d.version 'atom03' >>> d = feedparser.parse('http://feedparser.org/docs/examples/rss20.xml') >>> d.version 'rss20' >>> d = feedparser.parse('http://feedparser.org/docs/examples/rss20dc.xml') >>> d.version 'rss20' >>> d = feedparser.parse('http://feedparser.org/docs/examples/rss10.rdf') >>> d.version 'rss10' Here is the complete list of known feed types and versions that may be returned in ``version``: ``rss090`` `RSS 0.90 <http://www.purplepages.ie/RSS/netscape/rss0.90.html>`_ ``rss091n`` `Netscape RSS 0.91 <http://my.netscape.com/publish/formats/rss-spec-0.91.html>`_ ``rss091u`` `Userland RSS 0.91 <http://backend.userland.com/rss091>`_ (`differences from Netscape RSS 0.91 <http://diveintomark.org/archives/2004/02/04/incompatible-rss#example3>`_) ``rss10`` `RSS 1.0 <http://purl.org/rss/1.0/>`_ ``rss092`` `RSS 0.92 <http://backend.userland.com/rss092>`_ ``rss093`` `RSS 0.93 <http://backend.userland.com/rss093>`_ ``rss094`` :abbr:`RSS (Rich Site Summary)` 0.94 (no accurate specification is known to exist) ``rss20`` `RSS 2.0 <http://blogs.law.harvard.edu/tech/rss>`_ ``rss`` :abbr:`RSS (Rich Site Summary)` (unknown or unrecognized version) ``atom01`` `Atom 0.1 <http://www.intertwingly.net/blog/1506.html>`_ ``atom02`` `Atom 0.2 <http://diveintomark.org/public/2003/08/atom02spec.txt>`_ ``atom03`` `Atom 0.3 <http://www.mnot.net/drafts/draft-nottingham-atom-format-02.html>`_ ``atom10`` `Atom 1.0 <http://www.ietf.org/rfc/rfc4287>`_ ``atom`` Atom (unknown or unrecognized version) ``cdf`` `CDF <http://www.w3.org/TR/NOTE-CDFsubmit.html>`_ If the feed type is completely unknown, ``version`` will be an empty string.