Renamed spotipy to client to avoid confusion

spotipy/__init__.py

@@ -1,2 +1 @@
-__all__ = ['spotipy']
+from client import Spotify, SpotifyException
-from spotipy import *

spotipy/client.py

@@ -39,6 +39,8 @@ class Spotify(object):
     '''
 
     trace = False 
+    """enable tracing"""
+
     _auth = None
     
     def __init__(self, auth=None):