anchor.diff:  
   buildPythonPackage rec {
     pname = "pyvex";
  -  version = "9.0.5739";
  +  version = "9.0.5903";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "1jwxxw2kw7wkz7kh8m8vbavzw6m5k6xph7mazfn3k2qbsshh3lk3";
  +    sha256 = "sha256-qhLlRlmb48zhjX2u9w6TVVv2gb0E9kSapabiv+u4J2s=";
     };
   
     propagatedBuildInputs = [
  
positive.code:     homepage = "https://github.com/angr/pyvex";
      license = with licenses; [ bsd2 gpl3Plus lgpl3Plus ];
      maintainers = with maintainers; [ fab ];
    };
  }
  
negative.code: { lib
  , stdenv
  , archinfo
  , bitstring
  , fetchPypi
  