nvpy: 0.9.7 -> 2.1.0, switch to Python3

pkgs/applications/editors/nvpy/default.nix

@@ -1,20 +1,24 @@
-{ pkgs, fetchurl, python2Packages }:
+{ pkgs, fetchFromGitHub, python3Packages }:
 
 let
-  pythonPackages = python2Packages;
+  pythonPackages = python3Packages;
 in pythonPackages.buildPythonApplication rec {
-  version = "0.9.7";
+  version = "2.1.0";
   pname = "nvpy";
 
-  src = fetchurl {
-    url = "https://github.com/cpbotha/nvpy/archive/v${version}.tar.gz";
-    sha256 = "1rd3vlaqkg16iz6qcw6rkbq0jmyvc0843wa3brnvn1nz0kla243f";
+  src = fetchFromGitHub {
+    owner = "cpbotha";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "02njvybd8yaqdnc5ghwrm8225z57gg4w7rhmx3w5jqzh16ld4mhh";
   };
 
+
   propagatedBuildInputs = with pythonPackages; [
     markdown
-    tkinter
     docutils
+    simplenote
+    tkinter
   ];
 
   # No tests