anchor.diff:  , fetchFromGitHub
   , isPy27
   , pygments
  -, pytest
  +, pytestCheckHook
   , pytestcov
   , uvloop
   }:
  
positive.code:   ];
  
    checkInputs = [
      pytest
      pytestcov
      uvloop
    ];
  
negative.code:     export HOME=$TMPDIR
    '';
  
    pythonImportsCheck = [ "aiorun" ];
  
    meta = with lib; {
      description = "Boilerplate for asyncio applications";
  