beets: use python3Packages

pkgs/tools/audio/beets/default.nix

@@ -97,7 +97,7 @@ let
   };
 
 in pythonPackages.buildPythonApplication rec {
-  name = "beets-${version}";
+  pname = "beets";
   version = "1.4.7";
 
   src = fetchFromGitHub {
@@ -114,7 +114,6 @@ in pythonPackages.buildPythonApplication rec {
     pythonPackages.munkres
     pythonPackages.musicbrainzngs
     pythonPackages.mutagen
-    pythonPackages.pathlib
     pythonPackages.pyyaml
     pythonPackages.unidecode
     pythonPackages.gst-python

pkgs/top-level/all-packages.nix

@@ -1549,7 +1549,7 @@ with pkgs;
   beegfs = callPackage ../os-specific/linux/beegfs { };
 
   beets = callPackage ../tools/audio/beets {
-    pythonPackages = python2Packages;
+    pythonPackages = python3Packages;
   };
 
   bepasty = callPackage ../tools/misc/bepasty { };