Dear, The discussion started on guix-devel [1]. Konrad list (almost) all the packages impacted there [2] and curated the list here [3].
Hartmut proposed this pad [4] to collect the packages to look at. Feel free to report there or here if you tackle a package. Cheers, simon [1] https://lists.gnu.org/archive/html/guix-devel/2019-11/msg00359.html [2] https://lists.gnu.org/archive/html/guix-devel/2019-11/msg00467.html [3] https://lists.gnu.org/archive/html/guix-devel/2019-11/msg00515.html [4] https://annuel.framapad.org/p/guix-python2-eol?lang=en