Mainly because we previously explored creating wheels with better compression.
But I think that if LZMA was included, then other new algorithms should be included as well. 

בתאריך יום ד׳, 23 בספט׳ 2020, 10:08, מאת Paul Sokolovsky ‏<>:

On Wed, 23 Sep 2020 06:11:27 -0000
"Omer Katz" <> wrote:

> zstd is used when you need fast compression speed, not the best ratio.
> Maybe we can ask google and facebook to contribute their
> implementations?

And $$$ to support maintaining it over the years.

In the meantime, why can't you use modules on PyPI/github/wherever
else? Why CPython stdlib should become an ugly ever-growing monster,
siphoning, like a black hole, everything around?

Best regards,