nut: fix install (#18848)
nut: fix install (#18848)

* nut: fix install

* flake8
iulian787/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack,LLNL/spack,iulian787/spack,LLNL/spack