From 6427f7e6bcdb89d53e62e5eefb8a4cab85ae7a06 Mon Sep 17 00:00:00 2001
From: Stein Magnus Jodal <stein.magnus@jodal.no>
Date: Mon, 29 Oct 2012 08:30:28 +0100
Subject: [PATCH] Split up two-level list comprehension

---
 mopidy/core/library.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/mopidy/core/library.py b/mopidy/core/library.py
index 37c8c522..e0df8928 100644
--- a/mopidy/core/library.py
+++ b/mopidy/core/library.py
@@ -1,3 +1,4 @@
+import itertools
 import urlparse
 
 import pykka
@@ -94,5 +95,6 @@ class LibraryController(object):
         """
         futures = [b.library.search(**query) for b in self.backends]
         results = pykka.get_all(futures)
-        return Playlist(tracks=[
-            track for playlist in results for track in playlist.tracks])
+        track_lists = [playlist.tracks for playlist in results]
+        tracks = list(itertools.chain(*track_lists))
+        return Playlist(tracks=tracks)