anchor.diff:  , buildPythonPackage
   , fetchPypi
   , pythonOlder
  -, html5lib
   , pytest
   , preshed
   , ftfy
   , numpy
   , murmurhash
   , plac
  -, six
   , ujson
   , dill
   , requests
  
positive.code: 
  buildPythonPackage rec {
    pname = "spacy";
    version = "2.0.16";
  
    src = fetchPypi {
      inherit pname version;
      sha256 = "1ghgbv819ff4777904p1kzayq1dj34i7853anvg859sak59r7pj1";
    };
  
    prePatch = ''
      substituteInPlace setup.py \
        --replace "regex==" "regex>=" \
        --replace "plac<1.0.0,>=0.9.6" "plac>=0.9.6" \
        --replace "thinc>=6.12.0,<6.13.0" "thinc>=6.12.0" \
        --replace "wheel>=0.32.0,<0.33.0" "wheel>=0.31.0"
    '';
  
    propagatedBuildInputs = [
  
negative.code:    preshed
     thinc
     plac
     ujson
     dill
     requests
  