Documentation download pages have broken URLs

[paulehoffman]

Describe the bug
The pages for downloading Python documentation, such as for 3.11, have URLs to the documents whose hosts are at docs.python.org. All those files get a 404 response. The URLs should have www.python.org as the host; those links would work.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://docs.python.org/3/
2. Click on 'Download these documents' at the upper left
3. Click on any link in the table
4. See the 404

Expected behavior
The files should download instead of getting a 404.

Desktop (please complete the following information):

• Browser: all

Additional context
You can go to the file index pages such as here and the links work fine.

[ned-deily]

Thanks for the report. There is a problem but it's more complicated than what's stated. There are two sets of documentation links here: (1) the documents that are built at least daily for the current HEADs of pre-release and stable branches (currently 3.12/main, 3.11, and 3.10); (2) the documentation set built and published for each release (i.e. 3.11.1, etc and summarized here). The problem is with the downloadable files for the latter, not the nightly builds (the downloads for the nightly builds like at https://docs.python.org/3/ appear to work correctly contrary to what is stated). IIRC, for backwards compatibility, there are supposed to be some redirects in place to allow the specific release build doc set downloads to work for both older and newer releases but that appears to not be working. (As I recall, the compatibility issues arose when the daily docs building and serving was moved to a separate host and domain some years back.) If someone doesn't get to it first, I'll try to investigate further. In the meantime, one can download the daily docs with the understanding that they might contain doc changes for as yet unreleased code changes or for a newer release if you are not using the most current release of a particular version.

[paulehoffman]

Seems fixed.

[ned-deily]

For the record, addressed here: python/cpython#95290