python3Packages.betacode: modernize

pkgs/development/python-modules/betacode/default.nix

@@ -6,23 +6,27 @@
   isPy3k,
   lib,
 }:
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "betacode";
   version = "1.0";
   pyproject = true;
+
+  __structuredAttrs = true;
+
   src = fetchPypi {
-    inherit pname version;
-    sha256 = "0s84kd9vblbjz61q7zchx64a6hmdqb4lillna5ryh0g9ij76g6r5";
+    inherit (finalAttrs) pname version;
+    hash = "sha256-JZtnjozpAehzUZbSSMnCrUKjiOmQ/YOD+XLRtVObBGk=";
   };
   build-system = [ setuptools ];
   preBuild = "echo > README.rst";
   # setup.py uses a python3 os.path.join
   disabled = !isPy3k;
   dependencies = [ pygtrie ];
+  pythonImportsCheck = [ "betacode" ];
   meta = {
     homepage = "https://github.com/matgrioni/betacode";
     description = "Small python package to flexibly convert from betacode to unicode and back";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ kmein ];
   };
-}
+})