anchor.diff:      install -Dm644 docs/wormhole.1 $out/share/man/man1/wormhole.1
     '';
   
  -  checkPhase = ''
  -    export PATH=$out/bin:$PATH
  -    export LANG="en_US.UTF-8"
  -    export LC_ALL="en_US.UTF-8"
  -    substituteInPlace src/wormhole/test/test_cli.py \
  -      --replace 'getProcessOutputAndValue("locale", ["-a"])' 'getProcessOutputAndValue("locale", ["-a"], env=os.environ)' \
  -      --replace 'if (os.path.dirname(os.path.abspath(wormhole))' 'if not os.path.abspath(wormhole).startswith("/nix/store") and (os.path.dirname(os.path.abspath(wormhole))' \
  -      --replace 'locale_env = dict(LC_ALL=locale, LANG=locale)' 'locale_env = dict(LC_ALL=locale, LANG=locale, LOCALE_ARCHIVE=os.getenv("LOCALE_ARCHIVE"))'
  -
  -    trial -j$NIX_BUILD_CORES wormhole
  -  '';
  -
     meta = with lib; {
       description = "Securely transfer data between computers";
       homepage = "https://github.com/magic-wormhole/magic-wormhole";
  
positive.code: , mock
  , magic-wormhole-transit-relay
  , magic-wormhole-mailbox-server
  }:
  
  buildPythonPackage rec {
  
negative.code:     mock
      magic-wormhole-transit-relay
      magic-wormhole-mailbox-server
      pytestCheckHook
    ];
  
    postPatch = lib.optionalString stdenv.isLinux ''
  