spotify-ripper: merge python2Packages for deps

pkgs/tools/misc/spotify-ripper/default.nix

@@ -18,44 +18,6 @@ assert m4aSupport || mp4Support -> fdk-aac-encoder.meta.available;
 assert oggSupport               -> vorbisTools.meta.available;
 assert opusSupport              -> opusTools.meta.available;
 
-let
-
-  lockPackage =
-    { package
-    , version
-    , sha256
-    , extra ? (oldAttrs: { })
-    }: package.overrideAttrs (oldAttrs: rec {
-      inherit version;
-      src = python2Packages.fetchPypi {
-        inherit (oldAttrs) pname;
-        inherit version sha256;
-      };
-    } // extra oldAttrs);
-
-  colorama = lockPackage {
-    package = python2Packages.colorama;
-    version = "0.3.3";
-    sha256 = "1716z9pq1r5ys3nkg7wdrb3h2f9rmd0zdxpxzmx3bgwgf6xg48gb";
-  };
-
-  mutagen = lockPackage {
-    package = python2Packages.mutagen;
-    version = "1.30";
-    sha256 = "0kv2gjnzbj1w0bswmxm7wi05x6ypi7jk52s0lb8gw8s459j41gyd";
-    extra = oldAttrs: {
-      patches = [ ];
-    };
-  };
-
-  pyspotify = lockPackage {
-    package = python2Packages.pyspotify;
-    version = "2.0.5";
-    sha256 = "0y16c024rrvbvfdqj1n0k4b25b1nbza3i7kspg5b0ci2src1rm7v";
-  };
-
-in
-
 python2Packages.buildPythonApplication rec {
   pname = "spotify-ripper";
   version = "2016.12.31";
@@ -67,14 +29,14 @@ python2Packages.buildPythonApplication rec {
     sha256 = "003d6br20f1cf4qvmpl62bk0k4h4v66ib76wn36c23bnh9x5q806";
   };
 
-  propagatedBuildInputs = [
+  propagatedBuildInputs = (with python2Packages; [
     colorama
     mutagen
     pyspotify
-    python2Packages.requests
-    python2Packages.schedule
-    python2Packages.setuptools
-
+    requests
+    schedule
+    setuptools
+  ]) ++ [
     (if flacSupport then flac else null)
     (if alacSupport then libav else null)
     (if aacSupport then faac else null)