pyprof2calltree is hard-coded to pythonPackages and fails for Python 3 profile results. See #66511. Since it can also be used as a library it makes sense to move it into pythonPackages.
Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools. This update was made based on information from https://repology.org/metapackage/pyprof2calltree/versions