anchor.diff: -{ lib, python3, git, pkgconfig }:
  +{ lib, python3, fetchFromGitHub, git, pkgconfig }:
   
   # Note:
   # Conan has specific dependency demands; check
  
positive.code:   ] ++ (with newPython.pkgs; [
      codecov
      mock
      pytest
      node-semver
      nose
      parameterized
      webtest
    ]);
  
    # Conan 1.14.0 has removed all tests from the Pypi source dist:
    #     https://github.com/conan-io/conan/pull/4713
    # We have recommended they be added back:
    #     https://github.com/conan-io/conan/issues/4563#issuecomment-602225083
    doCheck = false;
  
    postPatch = ''
  
negative.code: };
  
  in newPython.pkgs.buildPythonApplication rec {
    version = "1.27.0";
    pname = "conan";
  
    src = fetchFromGitHub {
      owner = "conan-io";
      repo = "conan";
      rev = version;
      sha256 = "0ncqs1p4g23fmzgdmwppgxr8w275h38hgjdzs456cgivz8xs9rjl";
    };
  
    propagatedBuildInputs = with newPython.pkgs; [
  