anchor.diff:  
     nativeBuildInputs = lib.optionals enableQt [ wrapQtAppsHook ];
   
  -  propagatedBuildInputs = with python3.pkgs; [
  +  propagatedBuildInputs = with py.pkgs; [
       aiohttp
       aiohttp-socks
       aiorpcx
  
positive.code:     ckcc-protocol
      keepkey
      trezor
    ] ++ lib.optionals enableQt [ pyqt5 qdarkstyle ];
  
    preBuild = ''
      sed -i 's,usr_share = .*,usr_share = "'$out'/share",g' setup.py
  
negative.code:       mv ./all/electrum/tests $out
      '';
    };
  
    py = python3.override {
      packageOverrides = self: super: {
  
        aiorpcx = super.aiorpcx.overridePythonAttrs (oldAttrs: rec {
          version = "0.18.7";
          src = oldAttrs.src.override {
            inherit version;
            sha256 = "1rswrspv27x33xa5bnhrkjqzhv0sknv5kd7pl1vidw9d2z4rx2l0";
          };
        });
      };
    };
  
  in
  
  python3.pkgs.buildPythonApplication {
  