anchor.diff: -{ lib, buildPythonPackage, fetchPypi, nose }:
  +{ lib
  +, buildPythonPackage
  +, fetchPypi
  +, nose
  +}:
   
   let
     lark-parser = buildPythonPackage rec {
       pname = "lark-parser";
  -    version = "0.7.8";
  +    version = "0.10.1";
   
       src = fetchPypi {
         inherit pname version;
  -      sha256 = "JiFeuxV+b7LudDGapERbnzt+RW4mviFc4Z/aqpAcIKQ=";
  +      sha256 = "15jr4c1falvgkq664xdgamykk6waklh1psy8v3wlrg0v59hngws2";
       };
   
       doCheck = true;
  
positive.code: in
  buildPythonPackage rec {
    pname = "bc-python-hcl2";
    version = "0.3.11";
  
    src = fetchPypi {
      inherit pname version;
      sha256 = "VZhI1oJ2EDZGyz3iI6/KYvJq4BGafzR+rcSgHqlUDrA=";
    };
  
    # Nose is required during build process, so can not use `checkInputs`.
  
negative.code:     lark-parser
    ];
  
    # This fork of python-hcl2 doesn't ship tests
    doCheck = false;
  
    pythonImportsCheck = [
      "hcl2"
    ];
  
    meta = with lib; {
      description = "Parser for HCL2 written in Python using Lark";
      longDescription = ''
        This parser only supports HCL2 and isn't backwards compatible with HCL v1.
        It can be used to parse any HCL2 config file such as Terraform.
      '';
      # Although this is the main homepage from PyPi but it is also a homepage
      # of another PyPi package (python-hcl2). But these two are different.
      homepage = "https://github.com/amplify-education/python-hcl2";
      license = licenses.mit;
      maintainers = with maintainers; [ anhdle14 ];
    };
  }
  