diff --git a/docs/conf.py b/docs/conf.py
index bcfcfd0..9185e1f 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -42,8 +42,8 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'spotipy'
-copyright = u'2014, Paul Lamere'
+project = 'spotipy'
+copyright = '2014, Paul Lamere'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -185,8 +185,8 @@ latex_elements = {
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, documentclass [howto/manual]).
 latex_documents = [
-  ('index', 'spotipy.tex', u'spotipy Documentation',
-   u'Paul Lamere', 'manual'),
+  ('index', 'spotipy.tex', 'spotipy Documentation',
+   'Paul Lamere', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
@@ -215,8 +215,8 @@ latex_documents = [
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
 man_pages = [
-    ('index', 'spotipy', u'spotipy Documentation',
-     [u'Paul Lamere'], 1)
+    ('index', 'spotipy', 'spotipy Documentation',
+     ['Paul Lamere'], 1)
 ]
 
 # If true, show URL addresses after external links.
@@ -229,8 +229,8 @@ man_pages = [
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-  ('index', 'spotipy', u'spotipy Documentation',
-   u'Paul Lamere', 'spotipy', 'One line description of project.',
+  ('index', 'spotipy', 'spotipy Documentation',
+   'Paul Lamere', 'spotipy', 'One line description of project.',
    'Miscellaneous'),
 ]
 
diff --git a/examples/add_a_saved_track.py b/examples/add_a_saved_track.py
index f403d82..fd8ec1e 100644
--- a/examples/add_a_saved_track.py
+++ b/examples/add_a_saved_track.py
@@ -13,7 +13,7 @@ if len(sys.argv) > 2:
     username = sys.argv[1]
     tids = sys.argv[2:]
 else:
-    print "Usage: %s username track-id ..." % (sys.argv[0],)
+    print("Usage: %s username track-id ..." % (sys.argv[0],))
     sys.exit()
 
 token = util.prompt_for_user_token(username, scope)
@@ -24,4 +24,4 @@ if token:
     results = sp.current_user_saved_tracks_add(tracks=tids)
     pprint.pprint(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/add_tracks_to_playlist.py b/examples/add_tracks_to_playlist.py
index bda1cd8..a5297da 100644
--- a/examples/add_tracks_to_playlist.py
+++ b/examples/add_tracks_to_playlist.py
@@ -12,7 +12,7 @@ if len(sys.argv) > 3:
     playlist_id = sys.argv[2]
     track_ids = sys.argv[3:]
 else:
-    print "Usage: %s username playlist_id track_id ..." % (sys.argv[0],)
+    print("Usage: %s username playlist_id track_id ..." % (sys.argv[0],))
     sys.exit()
 
 scope = 'playlist-modify-public'
@@ -22,6 +22,6 @@ if token:
     sp = spotipy.Spotify(auth=token)
     sp.trace = False
     results = sp.user_playlist_add_tracks(username, playlist_id, track_ids)
-    print results
+    print(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/artist_albums.py b/examples/artist_albums.py
index b8b35e2..6b9f6ce 100644
--- a/examples/artist_albums.py
+++ b/examples/artist_albums.py
@@ -24,14 +24,14 @@ def show_artist_albums(artist):
     for album in albums:
         name = album['name']
         if name not in seen:
-            print(' ' + name)
+            print((' ' + name))
             seen.add(name)
 
 if __name__ == '__main__':
     sp = spotipy.Spotify()
 
     if len(sys.argv) < 2:
-        print('Usage: {0} artist name'.format(sys.argv[0]))
+        print(('Usage: {0} artist name'.format(sys.argv[0])))
     else:
         name = ' '.join(sys.argv[1:])
         artist = get_artist(name)
diff --git a/examples/artist_discography.py b/examples/artist_discography.py
index cd2fb38..8d30d15 100644
--- a/examples/artist_discography.py
+++ b/examples/artist_discography.py
@@ -20,9 +20,9 @@ def show_album_tracks(album):
         results = sp.next(results)
         tracks.extend(results['items'])
     for track in tracks:
-        print '  ', track['name']
-        print
-        print track
+        print('  ', track['name'])
+        print()
+        print(track)
 
 def show_artist_albums(id):
     albums = []
@@ -31,27 +31,27 @@ def show_artist_albums(id):
     while results['next']:
         results = sp.next(results)
         albums.extend(results['items'])
-    print 'Total albums:', len(albums)
+    print('Total albums:', len(albums))
     unique = set()  # skip duplicate albums
     for album in albums:
         name = album['name']
         if not name in unique:  
-            print name
+            print(name)
             unique.add(name)
             show_album_tracks(album)
 
 def show_artist(artist):
-    print '====', artist['name'], '===='
-    print 'Popularity: ', artist['popularity']
+    print('====', artist['name'], '====')
+    print('Popularity: ', artist['popularity'])
     if len(artist['genres']) > 0:
-        print 'Genres: ', ','.join(artist['genres'])
+        print('Genres: ', ','.join(artist['genres']))
 
 if __name__ == '__main__':
     sp = spotipy.Spotify()
     sp.trace = False
 
     if len(sys.argv) < 2:
-        print('Usage: {0} artist name'.format(sys.argv[0]))
+        print(('Usage: {0} artist name'.format(sys.argv[0])))
     else:
         name = ' '.join(sys.argv[1:])
         artist = get_artist(name)
diff --git a/examples/contains_a_saved_track.py b/examples/contains_a_saved_track.py
index 864e5c3..2dac2f5 100644
--- a/examples/contains_a_saved_track.py
+++ b/examples/contains_a_saved_track.py
@@ -10,7 +10,7 @@ if len(sys.argv) > 2:
     username = sys.argv[1]
     tids = sys.argv[2:]
 else:
-    print "Usage: %s username track-id ..." % (sys.argv[0],)	
+    print("Usage: %s username track-id ..." % (sys.argv[0],))	
     sys.exit()
 
 token = util.prompt_for_user_token(username, scope)
@@ -21,4 +21,4 @@ if token:
     results = sp.current_user_saved_tracks_contains(tracks=tids)
     pprint.pprint(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/create_playlist.py b/examples/create_playlist.py
index 29881cc..aacbac7 100644
--- a/examples/create_playlist.py
+++ b/examples/create_playlist.py
@@ -13,7 +13,7 @@ if len(sys.argv) > 2:
     username = sys.argv[1]
     playlist_name = sys.argv[2]
 else:
-    print "Usage: %s username playlist-name" % (sys.argv[0],)
+    print("Usage: %s username playlist-name" % (sys.argv[0],))
     sys.exit()
 
 token = util.prompt_for_user_token(username)
@@ -24,4 +24,4 @@ if token:
     playlists = sp.user_playlist_create(username, playlist_name)
     pprint.pprint(playlists)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/delete_a_saved_track.py b/examples/delete_a_saved_track.py
index 0087bb7..7d40b6b 100644
--- a/examples/delete_a_saved_track.py
+++ b/examples/delete_a_saved_track.py
@@ -12,7 +12,7 @@ if len(sys.argv) > 2:
     username = sys.argv[1]
     tids = sys.argv[2:]
 else:
-    print "Usage: %s username track-id ..." % (sys.argv[0],)
+    print("Usage: %s username track-id ..." % (sys.argv[0],))
     sys.exit()
 
 token = util.prompt_for_user_token(username, scope)
@@ -23,4 +23,4 @@ if token:
     results = sp.current_user_saved_tracks_delete(tracks=tids)
     pprint.pprint(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/remove_specific_tracks_from_playlist.py b/examples/remove_specific_tracks_from_playlist.py
index 70e6525..a99dc94 100644
--- a/examples/remove_specific_tracks_from_playlist.py
+++ b/examples/remove_specific_tracks_from_playlist.py
@@ -16,7 +16,7 @@ if len(sys.argv) > 3:
         tid, pos = t_pos.split(',')
         track_ids.append( { "uri" : tid, "positions": [ int(pos)] } )
 else:
-    print "Usage: %s username playlist_id track_id,pos track_id,pos ..." % (sys.argv[0],)
+    print("Usage: %s username playlist_id track_id,pos track_id,pos ..." % (sys.argv[0],))
     sys.exit()
 
 scope = 'playlist-modify-public'
@@ -28,4 +28,4 @@ if token:
     results = sp.user_playlist_remove_specific_occurrences_of_tracks(username, playlist_id, track_ids)
     pprint.pprint(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/remove_tracks_from_playlist.py b/examples/remove_tracks_from_playlist.py
index a7ba3d8..e9fca7b 100644
--- a/examples/remove_tracks_from_playlist.py
+++ b/examples/remove_tracks_from_playlist.py
@@ -12,7 +12,7 @@ if len(sys.argv) > 3:
     playlist_id = sys.argv[2]
     track_ids = sys.argv[3:]
 else:
-    print "Usage: %s username playlist_id track_id ..." % (sys.argv[0],)
+    print("Usage: %s username playlist_id track_id ..." % (sys.argv[0],))
     sys.exit()
 
 scope = 'playlist-modify-public'
@@ -24,4 +24,4 @@ if token:
     results = sp.user_playlist_remove_all_occurrences_of_tracks(username, playlist_id, track_ids)
     pprint.pprint(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/replace_tracks_in_playlist.py b/examples/replace_tracks_in_playlist.py
index 2d40178..452d328 100644
--- a/examples/replace_tracks_in_playlist.py
+++ b/examples/replace_tracks_in_playlist.py
@@ -12,7 +12,7 @@ if len(sys.argv) > 3:
     playlist_id = sys.argv[2]
     track_ids = sys.argv[3:]
 else:
-    print "Usage: %s username playlist_id track_id ..." % (sys.argv[0],)
+    print("Usage: %s username playlist_id track_id ..." % (sys.argv[0],))
     sys.exit()
 
 scope = 'playlist-modify-public'
@@ -24,4 +24,4 @@ if token:
     results = sp.user_playlist_replace_tracks(username, playlist_id, track_ids)
     pprint.pprint(results)
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/show_artist_top_tracks.py b/examples/show_artist_top_tracks.py
index e710d82..a80beb8 100644
--- a/examples/show_artist_top_tracks.py
+++ b/examples/show_artist_top_tracks.py
@@ -13,4 +13,4 @@ sp = spotipy.Spotify()
 response = sp.artist_top_tracks(urn)
 
 for track in response['tracks']:
-    print track['name']
+    print(track['name'])
diff --git a/examples/show_featured_playlists.py b/examples/show_featured_playlists.py
index 823f8df..2c7f8d9 100644
--- a/examples/show_featured_playlists.py
+++ b/examples/show_featured_playlists.py
@@ -8,8 +8,8 @@ import spotipy.util as util
 if len(sys.argv) > 1:
     username = sys.argv[1]
 else:
-    print "Whoops, need your username!"
-    print "usage: python featured_playlists.py [username]"
+    print("Whoops, need your username!")
+    print("usage: python featured_playlists.py [username]")
     sys.exit()
 
 token = util.prompt_for_user_token(username)
@@ -18,16 +18,16 @@ if token:
     sp = spotipy.Spotify(auth=token)
 
     response = sp.featured_playlists()
-    print response['message']
+    print(response['message'])
 
     while response:
         playlists = response['playlists']
         for i, item in enumerate(playlists['items']):
-            print playlists['offset'] + i, item['name']
+            print(playlists['offset'] + i, item['name'])
 
         if playlists['next']:
             response = sp.next(playlists)
         else:
             response = None
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/show_my_saved_tracks.py b/examples/show_my_saved_tracks.py
index ee972fa..4e74562 100644
--- a/examples/show_my_saved_tracks.py
+++ b/examples/show_my_saved_tracks.py
@@ -10,7 +10,7 @@ scope = 'user-library-read'
 if len(sys.argv) > 1:
     username = sys.argv[1]
 else:
-    print "Usage: %s username" % (sys.argv[0],)
+    print("Usage: %s username" % (sys.argv[0],))
     sys.exit()
 
 token = util.prompt_for_user_token(username, scope)
@@ -20,6 +20,6 @@ if token:
     results = sp.current_user_saved_tracks()
     for item in results['items']:
         track = item['track']
-        print track['name'] + ' - ' + track['artists'][0]['name']
+        print(track['name'] + ' - ' + track['artists'][0]['name'])
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/show_new_releases.py b/examples/show_new_releases.py
index 5485435..5205245 100644
--- a/examples/show_new_releases.py
+++ b/examples/show_new_releases.py
@@ -8,8 +8,8 @@ import spotipy.util as util
 if len(sys.argv) > 1:
     username = sys.argv[1]
 else:
-    print "Whoops, need your username!"
-    print "usage: python new_releases.py [username]"
+    print("Whoops, need your username!")
+    print("usage: python new_releases.py [username]")
     sys.exit()
 
 token = util.prompt_for_user_token(username)
@@ -22,11 +22,11 @@ if token:
     while response:
         albums = response['albums']
         for i, item in enumerate(albums['items']):
-            print albums['offset'] + i,item['name']
+            print(albums['offset'] + i,item['name'])
 
         if albums['next']:
             response = sp.next(albums)
         else:
             response = None
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/show_related.py b/examples/show_related.py
index ce96e42..b78e1dc 100644
--- a/examples/show_related.py
+++ b/examples/show_related.py
@@ -17,9 +17,9 @@ try:
     uri = result['artists']['items'][0]['uri']
 
     related = sp.artist_related_artists(uri)
-    print 'Related artists for', name
+    print('Related artists for', name)
     for artist in related['artists']:
-        print '  ', artist['name']
+        print('  ', artist['name'])
 except:
-    print "usage show_related.py [artist-name]"
+    print("usage show_related.py [artist-name]")
 
diff --git a/examples/show_tracks.py b/examples/show_tracks.py
index de64bbb..79a5302 100644
--- a/examples/show_tracks.py
+++ b/examples/show_tracks.py
@@ -15,10 +15,10 @@ if __name__ == '__main__':
     tids = file.read().split()
 
     sp = spotipy.Spotify()
-    for start in xrange(0, len(tids), max_tracks_per_call):
+    for start in range(0, len(tids), max_tracks_per_call):
         results = sp.tracks(tids[start: start + max_tracks_per_call])
         for track in results['tracks']:
-            print track['name'] + ' - ' + track['artists'][0]['name']
+            print(track['name'] + ' - ' + track['artists'][0]['name'])
 
 
 
diff --git a/examples/simple0.py b/examples/simple0.py
index f5e76c1..52540bb 100644
--- a/examples/simple0.py
+++ b/examples/simple0.py
@@ -3,4 +3,4 @@ sp = spotipy.Spotify()
 
 results = sp.search(q='weezer', limit=20)
 for i, t in enumerate(results['tracks']['items']):
-    print ' ', i, t['name']
+    print(' ', i, t['name'])
diff --git a/examples/simple1.py b/examples/simple1.py
index 48d8e97..1748b24 100644
--- a/examples/simple1.py
+++ b/examples/simple1.py
@@ -12,5 +12,5 @@ while results['next']:
     albums.extend(results['items'])
 
 for album in albums:
-    print(album['name'])
+    print((album['name']))
 
diff --git a/examples/simple2.py b/examples/simple2.py
index 6bb6526..3b06ddc 100644
--- a/examples/simple2.py
+++ b/examples/simple2.py
@@ -9,7 +9,7 @@ spotify = spotipy.Spotify()
 results = spotify.artist_top_tracks(lz_uri)
 
 for track in results['tracks'][:10]:
-    print 'track    : ' + track['name']
-    print 'audio    : ' + track['preview_url']
-    print 'cover art: ' + track['album']['images'][0]['url']
-    print
+    print('track    : ' + track['name'])
+    print('audio    : ' + track['preview_url'])
+    print('cover art: ' + track['album']['images'][0]['url'])
+    print()
diff --git a/examples/simple3.py b/examples/simple3.py
index bac271b..96f300a 100644
--- a/examples/simple3.py
+++ b/examples/simple3.py
@@ -12,5 +12,5 @@ results = spotify.search(q='artist:' + name, type='artist')
 items = results['artists']['items']
 if len(items) > 0:
     artist = items[0]
-    print artist['name'], artist['images'][0]['url']
+    print(artist['name'], artist['images'][0]['url'])
 
diff --git a/examples/tracks.py b/examples/tracks.py
index 92104b1..0e3f8c0 100644
--- a/examples/tracks.py
+++ b/examples/tracks.py
@@ -1,6 +1,6 @@
 # shows tracks for the given artist
 
-from __future__ import print_function
+
 import spotipy
 import sys
 sp = spotipy.Spotify()
diff --git a/examples/user_playlists.py b/examples/user_playlists.py
index 76bf71c..7bcc1f5 100644
--- a/examples/user_playlists.py
+++ b/examples/user_playlists.py
@@ -13,8 +13,8 @@ import spotipy.util as util
 if len(sys.argv) > 1:
     username = sys.argv[1]
 else:
-    print "Whoops, need your username!"
-    print "usage: python user_playlists.py [username]"
+    print("Whoops, need your username!")
+    print("usage: python user_playlists.py [username]")
     sys.exit()
 
 token = util.prompt_for_user_token(username)
@@ -23,6 +23,6 @@ if token:
     sp = spotipy.Spotify(auth=token)
     playlists = sp.user_playlists(username)
     for playlist in playlists['items']:
-        print playlist['name']
+        print(playlist['name'])
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/examples/user_playlists_contents.py b/examples/user_playlists_contents.py
index 895e83e..b0bac03 100644
--- a/examples/user_playlists_contents.py
+++ b/examples/user_playlists_contents.py
@@ -8,15 +8,15 @@ import spotipy.util as util
 def show_tracks(results):
     for i, item in enumerate(tracks['items']):
         track = item['track']
-        print "   %d %32.32s %s" % (i, track['artists'][0]['name'], track['name'])
+        print("   %d %32.32s %s" % (i, track['artists'][0]['name'], track['name']))
 
 
 if __name__ == '__main__':
     if len(sys.argv) > 1:
         username = sys.argv[1]
     else:
-        print "Whoops, need your username!"
-        print "usage: python user_playlists.py [username]"
+        print("Whoops, need your username!")
+        print("usage: python user_playlists.py [username]")
         sys.exit()
 
     token = util.prompt_for_user_token(username)
@@ -27,9 +27,9 @@ if __name__ == '__main__':
         playlists = sp.user_playlists(username)
         for playlist in playlists['items']:
             if playlist['owner']['id'] == username:
-                print
-                print playlist['name']
-                print '  total tracks', playlist['tracks']['total']
+                print()
+                print(playlist['name'])
+                print('  total tracks', playlist['tracks']['total'])
                 results = sp.user_playlist(username, playlist['id'], fields="tracks,next")
                 tracks = results['tracks']
                 show_tracks(tracks)
@@ -37,5 +37,5 @@ if __name__ == '__main__':
                     tracks = sp.next(tracks)
                     show_tracks(tracks)
     else:
-        print "Can't get token for", username
+        print("Can't get token for", username)
 
diff --git a/examples/user_starred_playlist.py b/examples/user_starred_playlist.py
index 28435e1..914344a 100644
--- a/examples/user_starred_playlist.py
+++ b/examples/user_starred_playlist.py
@@ -9,8 +9,8 @@ import spotipy.util as util
 if len(sys.argv) > 1:
     username = sys.argv[1]
 else:
-    print "Whoops, need your username!"
-    print "usage: python user_playlists.py [username]"
+    print("Whoops, need your username!")
+    print("usage: python user_playlists.py [username]")
     sys.exit()
 
 token = util.prompt_for_user_token(username)
@@ -23,9 +23,9 @@ if token:
     while tracks:
         for item in tracks['items']:
             track = item['track']
-            print which, track['name' ], ' --', track['artists'][0]['name']
+            print(which, track['name' ], ' --', track['artists'][0]['name'])
             which += 1
         tracks = sp.next(tracks)
 
 else:
-    print "Can't get token for", username
+    print("Can't get token for", username)
diff --git a/spotipy/__init__.py b/spotipy/__init__.py
index 9339d2a..9be1dce 100644
--- a/spotipy/__init__.py
+++ b/spotipy/__init__.py
@@ -1,2 +1,2 @@
 VERSION='2.0.1'
-from client import Spotify, SpotifyException
+from .client import Spotify, SpotifyException
diff --git a/spotipy/client.py b/spotipy/client.py
index 5c2ff21..c926814 100644
--- a/spotipy/client.py
+++ b/spotipy/client.py
@@ -1,7 +1,7 @@
 # coding: utf-8
 
-from __future__ import print_function
 
+from __future__ import print_function
 import sys
 import base64
 import requests
@@ -18,7 +18,7 @@ class SpotifyException(Exception):
         self.msg = msg
 
     def __str__(self):
-        return u'http status: {0}, code:{1} - {2}'.format(
+        return 'http status: {0}, code:{1} - {2}'.format(
             self.http_status, self.code, self.msg)
 
 class Spotify(object):
@@ -101,7 +101,9 @@ class Spotify(object):
             r.raise_for_status()
         except:
             raise SpotifyException(r.status_code,
-                -1, u'%s:\n %s' % (r.url, r.json()['error']['message']))
+                -1, '%s:\n %s' % (r.url, r.json()['error']['message']))
+        finally:
+            r.connection.close()
         if len(r.text) > 0:
             results = r.json()
             if self.trace:  # pragma: no cover
diff --git a/spotipy/oauth2.py b/spotipy/oauth2.py
index aa8034e..bb10e32 100644
--- a/spotipy/oauth2.py
+++ b/spotipy/oauth2.py
@@ -1,12 +1,20 @@
+
 from __future__ import print_function
 import base64
-import urllib
 import requests
 import os
 import json
 import time
 import sys
 
+# Workaround to support both python 2 & 3
+try:
+    import urllib.request, urllib.error
+    import urllib.parse as urllibparse
+except ImportError:
+    import urllib as urllibparse
+
+
 
 class SpotifyOauthError(Exception):
     pass
@@ -54,8 +62,12 @@ class SpotifyClientCredentials(object):
         """Gets client credentials access token """
         payload = { 'grant_type': 'client_credentials'}
 
-        auth_header = base64.b64encode(self.client_id + ':' + self.client_secret)
-        headers = {'Authorization': 'Basic %s' % auth_header}
+        if sys.version_info[0] >= 3: # Python 3
+            auth_header = base64.b64encode(str(self.client_id + ':' + self.client_secret).encode())
+            headers = {'Authorization': 'Basic %s' % auth_header.decode()}
+        else: # Python 2
+            auth_header = base64.b64encode(self.client_id + ':' + self.client_secret)
+            headers = {'Authorization': 'Basic %s' % auth_header}
 
         response = requests.post(self.OAUTH_TOKEN_URL, data=payload,
             headers=headers, verify=True)
@@ -154,7 +166,7 @@ class SpotifyOAuth(object):
         if self.state:
             payload['state'] = self.state
 
-        urlparams = urllib.urlencode(payload)
+        urlparams = urllibparse.urlencode(payload)
 
         return "%s?%s" % (self.OAUTH_AUTHORIZE_URL, urlparams)
 
@@ -185,9 +197,12 @@ class SpotifyOAuth(object):
         if self.state:
             payload['state'] = self.state
 
-        auth_header = base64.b64encode(self.client_id + ':' + self.client_secret)
-        headers = {'Authorization': 'Basic %s' % auth_header}
-
+        if sys.version_info[0] >= 3: # Python 3
+            auth_header = base64.b64encode(str(self.client_id + ':' + self.client_secret).encode())
+            headers = {'Authorization': 'Basic %s' % auth_header.decode()}
+        else: # Python 2
+            auth_header = base64.b64encode(self.client_id + ':' + self.client_secret)
+            headers = {'Authorization': 'Basic %s' % auth_header}
 
         response = requests.post(self.OAUTH_TOKEN_URL, data=payload,
             headers=headers, verify=True)
@@ -210,8 +225,12 @@ class SpotifyOAuth(object):
         payload = { 'refresh_token': refresh_token,
                    'grant_type': 'refresh_token'}
 
-        auth_header = base64.b64encode(self.client_id + ':' + self.client_secret)
-        headers = {'Authorization': 'Basic %s' % auth_header}
+        if sys.version_info[0] >= 3: # Python 3
+            auth_header = base64.b64encode(str(self.client_id + ':' + self.client_secret).encode())
+            headers = {'Authorization': 'Basic %s' % auth_header.decode()}
+        else: # Python 2
+            auth_header = base64.b64encode(self.client_id + ':' + self.client_secret)
+            headers = {'Authorization': 'Basic %s' % auth_header}
 
         response = requests.post(self.OAUTH_TOKEN_URL, data=payload,
             headers=headers)
diff --git a/spotipy/util.py b/spotipy/util.py
index 8df4572..e3422f4 100644
--- a/spotipy/util.py
+++ b/spotipy/util.py
@@ -1,9 +1,10 @@
 
 # shows a user's playlists (need to be authenticated via oauth)
 
+from __future__ import print_function
 import os
 import subprocess
-import oauth2
+from . import oauth2
 import spotipy
 
 def prompt_for_user_token(username, scope=None, client_id = None,
@@ -32,7 +33,7 @@ def prompt_for_user_token(username, scope=None, client_id = None,
         redirect_uri = os.getenv('SPOTIPY_REDIRECT_URI')
 
     if not client_id:
-        print '''
+        print('''
             You need to set your Spotify API credentials. You can do this by
             setting environment variables like so:
 
@@ -42,7 +43,7 @@ def prompt_for_user_token(username, scope=None, client_id = None,
 
             Get your credentials at     
                 https://developer.spotify.com/my-applications
-        '''
+        ''')
         raise spotipy.SpotifyException(550, -1, 'no credentials set')
 
     sp_oauth = oauth2.SpotifyOAuth(client_id, client_secret, redirect_uri, 
@@ -55,7 +56,7 @@ def prompt_for_user_token(username, scope=None, client_id = None,
     token_info = sp_oauth.get_cached_token()
 
     if not token_info:
-        print '''
+        print('''
 
             User authentication requires interaction with your
             web browser. Once you enter your credentials and
@@ -63,19 +64,23 @@ def prompt_for_user_token(username, scope=None, client_id = None,
             a url.  Paste that url you were directed to to
             complete the authorization.
 
-        '''
+        ''')
         auth_url = sp_oauth.get_authorize_url()
         try:
             subprocess.call(["open", auth_url])
-            print "Opening %s in your browser" % auth_url
+            print("Opening %s in your browser" % auth_url)
         except:
-            print "Please navigate here: %s" % auth_url
+            print("Please navigate here: %s" % auth_url)
 
-        print
-        print
-        response = raw_input("Enter the URL you were redirected to: ")
-        print
-        print 
+        print()
+        print()
+        try:
+            response = raw_input("Enter the URL you were redirected to: ")
+        except NameError:
+            response = input("Enter the URL you were redirected to: ")
+
+        print()
+        print() 
 
         code = sp_oauth.parse_response_code(response)
         token_info = sp_oauth.get_access_token(code)
diff --git a/tests/authtests.py b/tests/authtests.py
index 348c30a..b5c7f00 100644
--- a/tests/authtests.py
+++ b/tests/authtests.py
@@ -57,11 +57,6 @@ class AuthTestSpotipy(unittest.TestCase):
     def test_user_playlists(self):
         playlists = spotify.user_playlists(username, limit=5)
         self.assertTrue('items' in playlists)
-
-        # known API issue currently causes this test to fail
-        # the issue is that the API doesn't currently respect the
-        # limit paramter
-
         self.assertTrue(len(playlists['items']) == 5)
 
     def test_user_playlist_tracks(self):
@@ -174,4 +169,4 @@ if __name__ == '__main__':
         spotify.trace = False
         unittest.main()
     else:
-        print "Usage: %s username" % (sys.argv[0],)
+        print("Usage: %s username" % (sys.argv[0],))
diff --git a/tests/client_credentials_tests.py b/tests/client_credentials_tests.py
index 767406b..4905062 100644
--- a/tests/client_credentials_tests.py
+++ b/tests/client_credentials_tests.py
@@ -17,7 +17,7 @@ class ClientCredentialsTestSpotipy(unittest.TestCase):
 
     def test_request_with_token(self):
         artist = spotify.artist(self.muse_urn)
-        self.assertTrue(artist['name'] == u'Muse')
+        self.assertTrue(artist['name'] == 'Muse')
 
 
 if __name__ == '__main__':
diff --git a/tests/tests.py b/tests/tests.py
index 7308e1a..c78233d 100644
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -25,7 +25,7 @@ class TestSpotipy(unittest.TestCase):
 
     def test_artist_urn(self):
         artist = self.spotify.artist(self.radiohead_urn)
-        self.assertTrue(artist['name'] == u'Radiohead')
+        self.assertTrue(artist['name'] == 'Radiohead')
 
     def test_artists(self):
         results = self.spotify.artists([self.weezer_urn, self.radiohead_urn])
@@ -34,7 +34,7 @@ class TestSpotipy(unittest.TestCase):
 
     def test_album_urn(self):
         album = self.spotify.album(self.pinkerton_urn)
-        self.assertTrue(album['name'] == u'Pinkerton')
+        self.assertTrue(album['name'] == 'Pinkerton')
 
     def test_album_tracks(self):
         results = self.spotify.album_tracks(self.pinkerton_urn)
@@ -58,15 +58,15 @@ class TestSpotipy(unittest.TestCase):
 
     def test_track_urn(self):
         track = self.spotify.track(self.creep_urn)
-        self.assertTrue(track['name'] == u'Creep')
+        self.assertTrue(track['name'] == 'Creep')
 
     def test_track_id(self):
         track = self.spotify.track(self.creep_id)
-        self.assertTrue(track['name'] == u'Creep')
+        self.assertTrue(track['name'] == 'Creep')
 
     def test_track_url(self):
         track = self.spotify.track(self.creep_url)
-        self.assertTrue(track['name'] == u'Creep')
+        self.assertTrue(track['name'] == 'Creep')
 
     def test_tracks(self):
         results = self.spotify.tracks([self.creep_url, self.el_scorcho_urn])
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..ffce4a8
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,5 @@
+[tox]
+envlist = py27,py34
+[testenv]
+deps=requests
+commands=python -m unittest discover tests