anchor.diff:      owner = "grahamwetzler";
       repo = "smart-meter-texas";
       rev = "v${version}";
  -    sha256 = "sha256-jewibcsqWnl0OQ2oEEOSOcyyDCIGZiG4EZQfuFUbxK4=";
  +    sha256 = "sha256-BZb02eIFYCrTDDqeo6FlGpm8LCN/GxcdKGTR5L2/DpE=";
     };
   
     postPatch = ''
  
positive.code: 
    propagatedBuildInputs = [
      aiohttp
      python-dateutil
      tenacity
    ];
  
negative.code: , pythonOlder
  , fetchFromGitHub
  , aiohttp
  , asn1
  , python-dateutil
  , tenacity
  }:
  
  buildPythonPackage rec {
    pname = "smart-meter-texas";
    version = "0.4.6";
  
    disabled = pythonOlder "3.6";
  
  