anchor.diff:      owner = "alenrajsp";
       repo = "tcxreader";
       rev = "v${version}";
  -    hash = "sha256-gPoYxdYCHVzSjCxhodRsbd60dGbPQtQQihdT0h3uVpU=";
  +    hash = "sha256-YJDuyInO5FCIdz7xE29qOpuH6rPKvO4FZChjgXdc+Aw=";
     };
   
     checkInputs = [
  
positive.code:   ];
  
    meta = with lib; {
      description = "A reader for Garmin’s TCX file format.";
      homepage = "https://github.com/alenrajsp/tcxreader";
      license = licenses.mit;
      maintainers = with maintainers; [ firefly-cpp ];
  
negative.code: 
  buildPythonPackage rec {
    pname = "tcxreader";
    version = "0.4.2";
    format = "setuptools";
  
    disabled = pythonOlder "3.7";
  