The links at http://docs.python.org/devguide/documenting.html#building-doc and http://docs.python.org/devguide/docquality.html to http://developer.apple.com/mac/library/documentation/UserExperience/Conceptual/APStyleGuide/APSG_2009.pdf lead to a "Page Not Found" message and a redirect to http://developer.apple.com/library/mac/navigation/.  This url should be updated to point to another copy of the 2009 style guide or https://help.apple.com/asg/mac/2013/ASG_2013.pdf, the 2013 version of Apple's Style Guide.

The attached patch updates the urls on the Documenting and Doc Quality pages to reference the new Apple Style Guide.

That link will be outdated in next few months (I believe :-)). What about https://help.apple.com/asg/mac ?

The latter link redirects to the current online searchable html version,
http://help.apple.com/asg/mac/2013/ 
and presumably always will. I think this is better than the 200 page pdf.

Updated patch to link instead to http://help.apple.com/asg/mac.

Thanks for that catch, Dmi and Terry.  I have to agree that its a much better alternative.

Has anyone looked at the current Apple style guide to determine whether it is still an appropriate reference for Python doc usage?  It appears to have undergone some major changes over the years as Apple's docs have changed.

I actually had a bit of a hard time even locating a copy of the 2009 version.  Thanks to the Wayback Machine, here's the 2009 version of the pdf for reference: http://web.archive.org/web/20121221004340/https://developer.apple.com/library/mac/documentation/UserExperience/Conceptual/APStyleGuide/APSG_2009.pdf

So I've done a quick comparison of the two, and for the most part each entry is an identical copy of the 2009 version.  Some dated entries have been removed, which I would consider a plus -- who realistically needs to know how to refer to a 56K modems these day, anyhow :) 

Aside from this kind of removal, a slightly modified layout, and a few updated images, I haven't noticed any significant differences.  What caught your eye, Ned?

"Documenting Python" references to the Apple Style Guide go back to at least Python 2.3.5's documentation, at that time to the 2001 version of the Apple Style Guide.  I was more curious if the Apple Style Guide was still being actively consulted by the documentation team or if this had become a vestigial link, being updated by rote.  So, I'd say update the link unless Georg or someone else says it is no longer relevant.

I don't think I ever read/consulted that page, except maybe the first time I came across that link.  I consult http://docs.python.org/devguide/documenting.html regularly, but that is mostly for the rst markup.  Usually I just try to be consistent with the document I'm working on.
Removing the link altogether would be fine with me.

If the general consensus is that the APSG link should be removed, here's one more patch for you.

New changeset dcb9ec098781 by Ezio Melotti in branch 'default':
#18021: remove broken link to the Apple Style Guide.  Patch by Madison May.
http://hg.python.org/devguide/rev/dcb9ec098781

Since this was keep getting reported (see e.g. #18446) I now removed the link.  If you think an updated link to the Apple Style Guide should be included instead please reopen, but from a quick look at it it's hard to tell what parts are relevant to our docs.
Thanks Madison for the patch(es).