anchor.diff:  
   let
   
  -  makeTest = import ./make-test.nix;
  +  makeTest = import ./make-test-python.nix;
   
     makeZfsTest = name:
       { kernelPackage ? pkgs.linuxPackages_latest
  
positive.code:   unstable = makeZfsTest "unstable" {
      enableUnstable = true;
      extraTest = ''
        $machine->succeed(
          "echo password | zpool create -o altroot='/tmp/mnt' -O encryption=aes-256-gcm -O keyformat=passphrase rpool /dev/vdb1",
          "zfs create -o mountpoint=legacy rpool/root",
          "mount -t zfs rpool/root /tmp/mnt",
          "udevadm settle",
  
negative.code:           "umount /tmp/mnt",
            "zpool destroy rpool",
            "udevadm settle"
          )
        '' + extraTest;
  
      };
  