anchor.diff:      sha256 = "0x9f1kjym1188fp6l5sqy0zz8mdb4xw861bni2ccv26q482ynbks";
     };
   
  +  outputs = [ "out" "doc" "info" ];
  +
     patchPhase = ''
       sed -i "src/allmydata/util/iputil.py" \
           -es"|_linux_path = '/sbin/ifconfig'|_linux_path = '${nettools}/bin/ifconfig'|g"
  
positive.code:     service-identity pyyaml
    ];
  
    postInstall = ''
      # Install the documentation.
      mkdir -p "$out/share/doc/${name}"
      cp -rv "docs/"* "$out/share/doc/${name}"
      find "$out/share/doc/${name}" -name Makefile -exec rm -v {} \;
    '';
  
    checkPhase = ''
  
negative.code:     sed -i 's/"pycrypto.*"/"pycrypto"/' src/allmydata/_auto_deps.py
    '';
  
    nativeBuildInputs = with pythonPackages; [ sphinx texinfo ];
  
    buildInputs = with pythonPackages; [ unzip numpy mock ];
  
    # The `backup' command requires `sqlite3'.
  