Split up two-level list comprehension

2012-10-29 08:30:28 +01:00 · 2012-10-29 08:30:28 +01:00 · 6427f7e6bc
commit 6427f7e6bc
parent 519fdb9326
1 changed files with 4 additions and 2 deletions
--- 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)