PyPI download URLs changed

[Russell Jones]

Hello All,

I'm working on a few python ports using the Python 1.0 PortGroup, and I 
get 404s for the download link. e.g. for Python module xyz version 
1.2.3, it looks for 
https://pypi.python.org/packages/source/x/xyz/xyz-1.2.3.tar.gz Trying 
this for a few random modules, it always comes back 404.

Looking at the output of "pip -vvv install ..." pip obtains an 
intermediate page, https://pypi.python.org/simple/xyz/ , which is a very 
basic (unterminated) html page with a list of a tags, with href element 
set to the relative URL of the downloads for all versions, each of which 
contains a long string of hex and appears random. It looks like pip 
parses this and picks the link for the chosen version (or sorting, maybe 
with distutils.version.LooseVersion, and choosing the highest: the list 
of links is not sorted). I guess the PortGroup needs to emulate this 
behaviour.

Any thoughts on how/whether this should be implemented in MacPorts?

Russell