[Catalog-sig] PyPI syndication format

Tres Seaver tseaver at palladion.com
Mon Sep 13 20:16:01 CEST 2010

Hash: SHA1

Martin v. Löwis wrote:
>> I'm in favour of the issue reported originally be solved by skipping any
>> changes to the RSS altogether (leave the existing one for a time, of
>> course) and using Atom syndication, since AFAICT it provides all the
>> requirements discussed so far but in addition is properly specified and
>> standardised.
> I don't think this ("all the requirements discussed so far") is actually
> the case. In the report, the reporter specifically asks for AppCast
> support, and elaborates that this is what
> http://connectedflow.com/appcasting/
> says, which in turn says
> # Appcasting is the practice of using the 'enclosure' feature of RSS
> # 2.0 feeds
> So, by nature, Atom can't possibly support Appcasting.
> I also wonder why you keep saying that RSS is not properly specified.
> http://cyber.law.harvard.edu/rss/rss.html

Atom addresses a number of ambiguities in the RSS 2.0 spec.  See:


In particular, handling markup (particularly HTML) as the content of
tags is underspecified in RSS 2.0.

> looks like a fine specification to me (but this really is a side issue;
> another is the use of the word "syndication": I don't know what it
> means, I then always think of organized crime and corruption - PyPI
> is not a member of any syndicate).

"Content syndication" is a fairly common term:  it has pre-internet uses
for stuff like "syndicated columns" in newspapers.  See:


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