[Python-Dev] PEP 0404 and VS 2010

[Paul Moore]

On 21 November 2013 21:02, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> Is that much different from package authors having to
> release binaries for different versions of Python,
> if they want to support older versions?
>
> Having multiple binaries for the same x.y version
> is different from what's been done before, but it
> seems to me an unavoidable consequence of supporting
> one x.y version for longer than usual.

None of the currently available binary distribution formats
distinguish Windows binaries by anything other than minor version. For
wheels (and I think eggs), this is a showstopper as the name is
essential metadata (compatibility tags) for the other formats (wininst
and msi) the name is merely informational - packagers could rename,
but (a) they will forget, and (b) the users won't know if they have or
not.

Before we can cleanly support multiple ABIs for a single minor version
on Windows, we need to have a resolution of this dilemma (which may be
nothing more than "only binaries for the python.org builds are allowed
on PyPI"...)

Paul