[Distutils] Platform tags for OS X binary wheels

[Robert McGibbon]

I'm using the Python from the Miniconda installer with py35 released last
week.

What does the python.org installer build for 10.6+ return for
`distutils.util.get_platform()`?

-Robert

On Fri, Nov 6, 2015 at 2:50 PM, Ned Deily <nad at acm.org> wrote:

> In article
> <CAN4+E8GZ4JrqFcbkwaK4rkfkx-T15b_ghmATh6RAeKhqKhxzMw at mail.gmail.com>,
>  Robert McGibbon <rmcgibbo at gmail.com> wrote:
> > I just tried to run `pip install numpy` on my OS X 10.10.3 box, and it
> > proceeds to download and compile the tarball from PyPI from source (very
> > slow). I see, however, that pre-compiled OS X wheel files are available
> on
> > PyPI for OS X 10.6 and later.
> >
> > Checking the code, it looks like pip is picking up the platform tag
> through
> > `distutils.util.get_platform()`, which returns 'macosx-10.5-x86_64' on
> this
> > machine. At root, I think this comes from the
> MACOSX_DEPLOYMENT_TARGET=10.5
> > entry in the Makefile at `python3.5/config-3.5m/Makefile`. I know that
> this
> > value is used by distutils compiling python extension modules --
> presumably
> > so that they can be distributed to any target machine with OS X >=10.5 --
> > so that's good. But is this the right thing for pip to be using when
> > checking whether a binary wheel is compatible? I see it mentioned
> > <https://www.python.org/dev/peps/pep-0425/#id13> in PEP 425, so perhaps
> > this was already hashed out on the list.
>
> Are you using an OS X Python installed from a python.org installer?  If
> so, be aware that there are two different OS X installers on Python.org
> for each current release.  One is intended for 10.5 systems, although it
> will work on later OS X systems.  The other is for 10.6 and later
> systems.  Unless you have a need to run on 10.5 or build something that
> works on 10.5, download and use the 10.6+ installers instead.  Then the
> existing whls for products like Numpy should work just fine.
>
> --
>  Ned Deily,
>  nad at acm.org
>
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