[Distutils] Deprecating little used file types/extensions on PyPI?

[Brett Cannon]

+1 on the whole idea. Trying to continue to nudge the community towards
more standardized approaches in packaging is always a good thing. :) I only
have one data point in relation to sdists file formats.

On Mon, 15 Aug 2016 at 12:09 Donald Stufft <donald at stufft.io> wrote:

> [SNIP]
>
> Looking at numbers again, the current number of projects for each file ext
> are:
>
> * .tar.gz: 444,338
> * .zip: 58,774
> * .tar.bz2: 3,265
> * .tgz: 217
> * Everything Else: 0
>

One thing to remember is that Windows can't read tar files natively while
it can for zip files. Now you can easily download tools on Windows to read
tar files and thanks to Bash on Windows you even have it included once you
turn that feature on.

The other point is we have a zip importer in Python but not a .tar.gz one. I
don't know how often anyone actually downloads a zip file directly from
PyPI and then tack it on to their sys.path for importing, but that is
currently possible.

I doubt either of these points are important enough to continue to support
zip files for sdists, but I just wanted to point it out. At worst this is
something to think about if we ever do formalize the sdist format and come
up with a custom file extension.
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