anchor.diff:  
   in buildPythonApplication rec {
     pname = "ocrmypdf";
  -  version = "8.2.3";
  +  version = "9.0.3";
     disabled = ! python3Packages.isPy3k;
   
     src = fetchFromGitHub {
       owner = "jbarlow83";
       repo = "OCRmyPDF";
       rev = "v${version}";
  -    sha256 = "1ldlyhxkav34y9d7g2kx3d4p26c2b82vnwi0ywnfynb16sav36d5";
  +    sha256 = "1qnjdcbwkxxqfahylzl0wj1gk51yi9m8akd4d1rrq37vg2vwdkjy";
     };
   
     nativeBuildInputs = with python3Packages; [
  
positive.code:     and not test_old_unpaper'
    '';
  
    meta = with stdenv.lib; {
      homepage = "https://github.com/jbarlow83/OCRmyPDF";
      description = "Adds an OCR text layer to scanned PDF files, allowing them to be searched";
  
negative.code:     img2pdf
      pdfminer
      pikepdf
      pillow
      reportlab
      ruffus
      setuptools
      tqdm
    ];
  
    checkInputs = with python3Packages; [
      pypdf2
      pytest
      pytest-helpers-namespace
  