anchor.diff:  
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "19ayn5w9ayxbb1m84l1s9qlb6kv7sz6sg34mzy8bnidc7qnfbn15";
  +    sha256 = "0yipb41w2icbj50d3z1j92d8w6xhbqd1rnmd31vzb5k3g20x0b0j";
     };
   
     # zope.interface issue
  
positive.code: 
    meta = {
      description = "Twisted-based Tor controller client, with state-tracking and configuration abstractions";
      homepage = https://github.com/meejah/txtorcon;
      maintainers = with lib.maintainers; [ jluttine ];
      # Currently broken on Python 2.7. See
      # https://github.com/NixOS/nixpkgs/issues/71826
  
negative.code: 
  buildPythonPackage rec {
    pname = "txtorcon";
    version = "20.0.0";
  
    checkInputs = [ pytest mock lsof GeoIP ];
    propagatedBuildInputs = [
  