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<h1><a href="/"><span>Universal Feed Parser</span></a></h1>
<p><span>Parse RSS and Atom feeds in Python. 3000 unit tests. Open source.</span></p>
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<div class="abstract"><p>According to the <acronym title="Rich Site Summary">RSS</acronym> specification, “<span class="quote"><tt class="sgmltag-element">ttl</tt> stands for time to live. It's a number of minutes that indicates how long a channel can be cached before refreshing from the source. This makes it possible for RSS sources to be managed by a file-sharing network such as Gnutella.</span>”</p></div>
<p>No one is quite sure what this means, and no one publishes feeds via file-sharing networks.</p>
<p>Some clients have interpreted this element to be some sort of inline caching mechanism, albeit one that completely ignores the underlying <acronym title="Hypertext Transfer Protocol">HTTP</acronym> protocol, its robust caching mechanisms, and the huge amount of <acronym title="Hypertext Transfer Protocol">HTTP</acronym>-savvy network infrastructure that understands them. Given the vague documentation, it is impossible to say that this interpretation is any more ridiculous than the element itself.</p>
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<h3>Comes from</h3>
<ul><li><tt class="literal">/rss/channel/ttl</tt></li></ul>
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