The Sage wrappers around ppl are now superseded by the standalone pplpy (Python/Cython compatible). This ticket proposes to replace src/sage/libs/ppl.pyx extension with pplpy. For this, we

• create a new standard package pplpy
• upgrade gmpy2 from optional to standard
• replace the Sage code calling sage/libs/ppl.pyx to call pplpy
• make appropriate deprecation for sage.libs.ppl

Tarball for pplpy: pplpy-0.8.4.tar.gz

Upstream: Reported upstream. Developers acknowledge bug.

CC: @videlec @kiwifb @embray @slel

Component: packages: standard

Keywords: thursdaysbdx, ppl, pplpy, upgrade

Author: Vincent Klein

Branch: 829317e

Reviewer: Dima Pasechnik, François Bissey, Vincent Delecroix, Jeroen Demeyer, Erik Bray

Issue created by migration from https://trac.sagemath.org/ticket/23024