Made cache_path and username optional (#567)

* Made cache_path and username optional

* Update readme and example

* Lint

* Lint

* Feedback / add warning

CHANGELOG.md

@@ -14,6 +14,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `SpotifyImplicitGrant` warns of security considerations and recommends
  `SpotifyPKCE`
 
+### Changed
+
+- Specifying a cache_path or username is now optional
+
 ### Fixed
 
 - Using `SpotifyPKCE.get_authorization_url` will now generate a code

README.md

@@ -50,7 +50,6 @@ from spotipy.oauth2 import SpotifyOAuth
 sp = spotipy.Spotify(auth_manager=SpotifyOAuth(client_id="YOUR_APP_CLIENT_ID",
                                                client_secret="YOUR_APP_CLIENT_SECRET",
                                                redirect_uri="YOUR_APP_REDIRECT_URI",
-                                               username="YOUR_SPOTIFY_USERNAME",
                                                scope="user-library-read"))
 
 results = sp.current_user_saved_tracks()

examples/my_top_tracks.py

@@ -1,16 +1,8 @@
 # Shows the top tracks for a user
 
-import sys
-
 import spotipy
 from spotipy.oauth2 import SpotifyOAuth
 
-if len(sys.argv) > 1:
-    username = sys.argv[1]
-else:
-    print("Usage: %s username" % (sys.argv[0],))
-    sys.exit()
-
 scope = 'user-top-read'
 sp = spotipy.Spotify(auth_manager=SpotifyOAuth(scope=scope))
 

examples/remove_specific_tracks_from_playlist.py

@@ -15,7 +15,7 @@
         track_ids.append({"uri": tid, "positions": [int(pos)]})
 else:
     print(
-        "Usage: %s username playlist_id track_id,pos track_id,pos ..." %
+        "Usage: %s playlist_id track_id,pos track_id,pos ..." %
         (sys.argv[0],))
     sys.exit()
 

examples/replace_tracks_in_playlist.py

@@ -10,7 +10,7 @@
     playlist_id = sys.argv[1]
     track_ids = sys.argv[2:]
 else:
-    print("Usage: %s username playlist_id track_id ..." % (sys.argv[0],))
+    print("Usage: %s playlist_id track_id ..." % (sys.argv[0],))
     sys.exit()
 
 scope = 'playlist-modify-public'

examples/show_user.py

@@ -1,5 +1,4 @@
-
-# shows artist info for a URN or URL
+# Shows artist info for a URN or URL
 
 from spotipy.oauth2 import SpotifyClientCredentials
 import spotipy