… while calling the 'throw' builtin
         at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/builder/ofborg-core/pkgs/top-level/python-aliases.nix:529:12:
          528|   py3to2 = throw "py3to2 is unmaintained and source is no longer available"; # added 2024-10-23
          529|   pypcap = throw "pypcap has been removed because it is broken and unmaintained upstream."; # added 2025-06-18
             |            ^
          530|   pytricia = throw "pytricia has been removed, since it is unmaintained"; # added 2025-05-25

       error: pypcap has been removed because it is broken and unmaintained upstream.