Merge pull request #145 from carlosedp/patch-1

Update function to make it compatible to Python 3.

spotipy/client.py

@@ -418,6 +418,11 @@ class Spotify(object):
                 - collaborative - optional is the playlist collaborative
         '''
         data = {}
+        # Add Python2 and Python3 compatibility checking string types
+        try:
+            basestring
+        except NameError:
+            basestring = str
         if isinstance(name, basestring):
             data['name'] = name
         if isinstance(public, bool):