anchor.diff:      six
       tqdm
       urllib3
  -  ];
  +  ] ++ lib.optionals stdenv.isDarwin [ idna cryptography pyopenssl ];
   
     checkInputs = [
       pkg-config
  
positive.code:         inherit version;
          sha256 = "1vn1db2akw98ybnpns92qi11v94hydwp130s8753k6ikby95883j";
        };
      });
      node-semver = super.node-semver.overridePythonAttrs (oldAttrs: rec {
        version = "0.6.1";
  
negative.code: { lib, stdenv, python3, fetchFromGitHub, git, pkg-config, fetchpatch }:
  
  # Note:
  # Conan has specific dependency demands; check
  