On Wed, Jun 3, 2020 at 12:34 PM Derek Homeier <derek@astro.physik.uni-goettingen.de> wrote:
On 2 Jun 2020, at 11:15 pm, Charles R Harris <charlesr.harris@gmail.com> wrote:
>
>> Also, I had expected the sdist to be the .tar.gz format, I can't find it back but IIRC that's what we decided in the past. It's smaller, and it's what pretty much all other projects do.
>
> NumPy has always used zip since PyPI limited the number of source releases. We did that before SciPy.
>
The .tar.gz version (if file size really is an issue, why not using .tar.xz?) is also available from
https://github.com/numpy/numpy/releases
and already was before the PyPI upload was completed. 

The archive files automatically generated by Github are faulty and cannot be used, you need to use the ones uploaded later. I choose zip because it is universally available and since we can only put one source release on PyPI, that was my choice. Before PyPI adopted the single source policy we would upload both.

Chuck