Subject: bug#35673: pypi importer returns the wheel hash when it fails to find a proper source.

From: Jack Hill <[email-masked]>
Date: Fri, 10 May 2019 14:41:23 -0400 (EDT)

As discussed on guix-devel[0] the pypi importer should probably not fill 
in the hash with that of the wheel if a proper source archive is not found 
on pypi.

[0] https://lists.gnu.org/archive/html/guix-devel/2019-05/msg00209.html

Best,
Jack