anchor.diff:      homepage = "http://imageio.github.io/";
       license = licenses.bsd2;
     };
  -
   }
  
positive.code: { lib
  , buildPythonPackage
  , isPy27
  , pathlib
  , fetchPypi
  , pillow
  , psutil
  , imageio-ffmpeg
  , pytest
  , numpy
  , isPy3k
  , ffmpeg_3
  , futures ? null
  , enum34
  }:
  
  buildPythonPackage rec {
  
negative.code:     inherit pname version;
    };
  
    propagatedBuildInputs = [
      imageio-ffmpeg
      numpy
      pillow
    ];
  
    checkInputs = [
      psutil
      pytestCheckHook
    ];
  
    preCheck = ''
      export IMAGEIO_USERDIR="$TMP"
      export IMAGEIO_NO_INTERNET="true"
      export HOME="$(mktemp -d)"
    '';
  
    meta = with lib; {
  