PyPy is a fast, compliant alternative implementation of the Python language
PyPy is a replacement for CPython. It is built using the RPython language
that was co-developed with it. The main reason to use it instead of CPython
is speed; it runs generally faster.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
On Debian 9 (Stretch) and newer, snap can be installed directly from the command line: