Re: pypi URL change

[Ben Woodcroft <donttrustben@gmail.com>]

On 25/04/16 17:54, Ludovic Courtès wrote:
> Cyril Roelandt <tipecaml@gmail.com> skribis:
>
>> On 04/25/2016 01:21 AM, Ben Woodcroft wrote:
>>> 2) The new URLs are even uglier than the old one and a working pypi-uri
>>> would hide them from our eyes.
>> Yeah but it is my understanding that the new pattern will only be
>> applied to new releases, so how will pypi-uri know what pattern to apply?
> How about changing ‘pypi-uri’ to return two URIs, the new one and the
> old one, in this order?
>
> That way, attempts to download will first try the first URI, then the
> second.
>
> Alternately, we could define a “pypi” mirror in (guix download) that
> would contain at least these two URIs, and have ‘pypi-uri’ return
> “mirror://pypi/…”.  That only works if the two URIs share the same
> suffix, though.
>
> WDYT?

Hmm. It just dawned on me that it is impossible to implement the 
pypi-uri so that it returns the new format because the new URI is 
generated from the content of the package, not just the name and 
version. So I think we must either write the hash or the entire URL into 
the package, or grab the json from pypi each time we download.

ben