pythonPackages.ludios_wpull: unmark broken, mark disabled for Python 3.8

ludios_wpull depends on namedlist, which currently has failing tests
on Python 3.8.

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

@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchFromGitHub
 , isPy3k
+, isPy38
 , chardet
 , dnspython
 , html5-parser
@@ -16,7 +17,7 @@ buildPythonPackage rec {
   pname = "ludios_wpull";
   version = "3.0.7";
 
-  disabled = !isPy3k;
+  disabled = !isPy3k || isPy38;
 
   src = fetchFromGitHub {
     rev = version;
@@ -35,6 +36,5 @@ buildPythonPackage rec {
     homepage = https://github.com/ludios/wpull;
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ ivan ];
-    broken = true;
   };
 }