$ apt-cache showpkg 'python3(progressbar)' Package: python3(progressbar) Versions: Reverse Depends: Dependencies: Provides: Reverse Provides: python3-module-progressbar2 3.34.4-alt2:sisyphus+249936.100.1.1@1586861626 python3-module-progressbar 2.5-alt1:sisyphus+233517.100.1.1@1561916604 There should not be that many providers of python3(progressbar).
267144 BUILDING #2 [locked] sisyphus del=python-module-progressbar