python3Packages.pycdio: set updateScript (#444814)

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

@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  nix-update-script,
   setuptools,
   pkg-config,
   swig,
@@ -42,6 +43,10 @@ buildPythonPackage rec {
 
   enabledTestPaths = [ "test/test-*.py" ];
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [ "--version=branch" ];
+  };
+
   meta = {
     homepage = "https://www.gnu.org/software/libcdio/";
     changelog = "https://github.com/rocky/pycdio/blob/${src.rev}/ChangeLog";