Then, there is something fishy with the package listing
$ sage -optional | grep gap database_gap............................4.8.6 (4.8.6) gap_jupyter.............................0.9 (not_installed) gap_packages............................4.8.6new2.p0 (4.8.6new2.p0) Le 01/01/2019 à 11:40, Volker Braun a écrit :
database_gap has been removed (the functionality is now merged into gap/gap_packages)
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