python3Packages.colorful: Ignore development versions for automatic updates (#527979)

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

@@ -2,6 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  gitUpdater,
   pytestCheckHook,
 }:
 
@@ -21,6 +22,13 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "colorful" ];
 
+  passthru.updateScript = gitUpdater {
+    # Drop the "v" tag prefix before version comparison.
+    rev-prefix = "v";
+    # Skip PEP 440 pre-release tags.
+    ignoredVersions = "(a|b|rc)[0-9]+$";
+  };
+
   meta = {
     description = "Library for terminal string styling";
     homepage = "https://github.com/timofurrer/colorful";