Formatted strings

CHANGELOG.md

@@ -19,6 +19,7 @@ Add your changes below.
 - Added `personalized_playlist.py`, `track_recommendations.py`, and `audio_features_analysis.py` to `/examples`.
 - Discord badge in README
 - Added `SpotifyBaseException` and moved all exceptions to `exceptions.py`
+- Use newer string formatters (https://pyformat.info)
 
 ### Fixed
 - Audiobook integration tests

docs/index.rst

@@ -145,7 +145,7 @@ class SpotifyClientCredentials that can be used to authenticate requests like so
     playlists = sp.user_playlists('spotify')
     while playlists:
         for i, playlist in enumerate(playlists['items']):
-            print("%4d %s %s" % (i + 1 + playlists['offset'], playlist['uri'],  playlist['name']))
+            print(f"{i + 1 + playlists['offset']:4d} {playlist['uri']} {playlist['name']}")
         if playlists['next']:
             playlists = sp.next(playlists)
         else:

examples/artist_albums.py

@@ -20,10 +20,7 @@ def get_args():
 def get_artist(name):
     results = sp.search(q='artist:' + name, type='artist')
     items = results['artists']['items']
-    if len(items) > 0:
-        return items[0]
-    else:
-        return None
+    return items[0] if items else None
 
 
 def show_artist_albums(artist):
@@ -38,7 +35,7 @@ def show_artist_albums(artist):
     for album in albums:
         name = album['name']
         if name not in seen:
-            logger.info('ALBUM: %s', name)
+            logger.info(f'ALBUM: {name}')
             seen.add(name)
 
 
@@ -48,7 +45,7 @@ def main():
     if artist:
         show_artist_albums(artist)
     else:
-        logger.error("Can't find artist: %s", artist)
+        logger.error(f"Can't find artist: {artist}")
 
 
 if __name__ == '__main__':

examples/artist_discography.py

@@ -20,10 +20,7 @@ def get_args():
 def get_artist(name):
     results = sp.search(q='artist:' + name, type='artist')
     items = results['artists']['items']
-    if len(items) > 0:
-        return items[0]
-    else:
-        return None
+    return items[0] if items else None
 
 
 def show_album_tracks(album):
@@ -34,7 +31,7 @@ def show_album_tracks(album):
         results = sp.next(results)
         tracks.extend(results['items'])
     for i, track in enumerate(tracks):
-        logger.info('%s. %s', i + 1, track['name'])
+        logger.info(f'{i + 1}. {track["name"]}')
 
 
 def show_artist_albums(artist):
@@ -44,21 +41,21 @@ def show_artist_albums(artist):
     while results['next']:
         results = sp.next(results)
         albums.extend(results['items'])
-    logger.info('Total albums: %s', len(albums))
+    logger.info(f'Total albums: {len(albums)}')
     unique = set()  # skip duplicate albums
     for album in albums:
         name = album['name'].lower()
         if name not in unique:
-            logger.info('ALBUM: %s', name)
+            logger.info(f'ALBUM: {name}')
             unique.add(name)
             show_album_tracks(album)
 
 
 def show_artist(artist):
-    logger.info('====%s====', artist['name'])
-    logger.info('Popularity: %s', artist['popularity'])
+    logger.info(f'===={artist["name"]}====')
+    logger.info(f'Popularity: {artist["popularity"]}')
     if len(artist['genres']) > 0:
-        logger.info('Genres: %s', ','.join(artist['genres']))
+        logger.info(f"Genres: {', '.join(artist['genres'])}")
 
 
 def main():

examples/artist_recommendations.py

@@ -22,17 +22,13 @@ def get_args():
 def get_artist(name):
     results = sp.search(q='artist:' + name, type='artist')
     items = results['artists']['items']
-    if len(items) > 0:
-        return items[0]
-    else:
-        return None
+    return items[0] if items else None
 
 
 def show_recommendations_for_artist(artist):
     results = sp.recommendations(seed_artists=[artist['id']])
     for track in results['tracks']:
-        logger.info('Recommendation: %s - %s', track['name'],
-                    track['artists'][0]['name'])
+        logger.info(f'Recommendation: {track["name"]} - {track["artists"][0]["name"]}')
 
 
 def main():

examples/follow_playlist.py

@@ -13,14 +13,9 @@ def get_args():
 
 def main():
     args = get_args()
-
-    if args.playlist is None:
-        # Uses the Spotify Global Top 50 playlist
-        spotipy.Spotify(auth_manager=SpotifyOAuth()).current_user_follow_playlist(
-            '37i9dQZEVXbMDoHDwVN2tF')
-
-    else:
-        spotipy.Spotify(auth_manager=SpotifyOAuth()).current_user_follow_playlist(args.playlist)
+    # Uses Lofi Girl playlist
+    playlist = args.playlist or '0vvXsWCC9xrXsKd4FyS8kM'
+    spotipy.Spotify(auth_manager=SpotifyOAuth()).current_user_follow_playlist(playlist)
 
 
 if __name__ == '__main__':

examples/my_playlists.py

@@ -8,4 +8,4 @@
 
 results = sp.current_user_playlists(limit=50)
 for i, item in enumerate(results['items']):
-    print("%d %s" % (i, item['name']))
+    print(f"{i} {item['name']}")

examples/show_my_saved_tracks.py

@@ -9,7 +9,7 @@
 def show_tracks(results):
     for item in results['items']:
         track = item['track']
-        print("%32.32s %s" % (track['artists'][0]['name'], track['name']))
+        print(f"{track['artists'][0]['name']:>32.32} {track['name']}")
 
 
 sp = spotipy.Spotify(auth_manager=SpotifyOAuth(scope=scope))

examples/track_recommendations.py

@@ -38,8 +38,5 @@
 
 # Display the recommendations
 for i, track in enumerate(recommendations['tracks']):
-    print(
-        "{}. {} by {}"
-        .format(i+1, track['name'], ', '
-                .join([artist['name'] for artist in track['artists']]))
-    )
+    print(f"{i+1}. {track['name']} by "
+          f"{', '.join([artist['name'] for artist in track['artists']])}")

examples/user_playlists_contents.py

@@ -7,9 +7,7 @@
 def show_tracks(results):
     for i, item in enumerate(results['items']):
         track = item['track']
-        print(
-            "   %d %32.32s %s" %
-            (i, track['artists'][0]['name'], track['name']))
+        print(f"   {i} {track['artists'][0]['name']:>32.32} {track['name']}")
 
 
 if __name__ == '__main__':

examples/user_public_playlists.py

@@ -18,13 +18,7 @@
 
 while playlists:
     for i, playlist in enumerate(playlists['items']):
-        print(
-            "%4d %s %s" %
-            (i +
-             1 +
-             playlists['offset'],
-             playlist['uri'],
-             playlist['name']))
+        print(f"{i + 1 + playlists['offset']:4d} {playlist['uri']} {playlist['name']}")
     if playlists['next']:
         playlists = sp.next(playlists)
     else:

spotipy/cache_handler.py

@@ -83,9 +83,9 @@ def get_cached_token(self):
 
         except OSError as error:
             if error.errno == errno.ENOENT:
-                logger.debug("cache does not exist at: %s", self.cache_path)
+                logger.debug(f"cache does not exist at: {self.cache_path}")
             else:
-                logger.warning("Couldn't read cache at: %s", self.cache_path)
+                logger.warning(f"Couldn't read cache at: {self.cache_path}")
 
         return token_info
 
@@ -95,8 +95,7 @@ def save_token_to_cache(self, token_info):
             f.write(json.dumps(token_info, cls=self.encoder_cls))
             f.close()
         except OSError:
-            logger.warning('Couldn\'t write token to cache at: %s',
-                           self.cache_path)
+            logger.warning(f"Couldn't write token to cache at: {self.cache_path}")
 
 
 class MemoryCacheHandler(CacheHandler):
@@ -149,7 +148,7 @@ def save_token_to_cache(self, token_info):
         try:
             self.request.session['token_info'] = token_info
         except Exception as e:
-            logger.warning("Error saving token to cache: " + str(e))
+            logger.warning(f"Error saving token to cache: {e}")
 
 
 class FlaskSessionCacheHandler(CacheHandler):
@@ -174,7 +173,7 @@ def save_token_to_cache(self, token_info):
         try:
             self.session["token_info"] = token_info
         except Exception as e:
-            logger.warning("Error saving token to cache: " + str(e))
+            logger.warning(f"Error saving token to cache: {e}")
 
 
 class RedisCacheHandler(CacheHandler):
@@ -200,15 +199,15 @@ def get_cached_token(self):
             if token_info:
                 return json.loads(token_info)
         except RedisError as e:
-            logger.warning('Error getting token from cache: ' + str(e))
+            logger.warning(f"Error getting token from cache: {e}")
 
         return token_info
 
     def save_token_to_cache(self, token_info):
         try:
             self.redis.set(self.key, json.dumps(token_info))
         except RedisError as e:
-            logger.warning('Error saving token to cache: ' + str(e))
+            logger.warning(f"Error saving token to cache: {e}")
 
 
 class MemcacheCacheHandler(CacheHandler):
@@ -232,11 +231,11 @@ def get_cached_token(self):
             if token_info:
                 return json.loads(token_info.decode())
         except MemcacheError as e:
-            logger.warning('Error getting token from cache' + str(e))
+            logger.warning(f"Error getting token to cache: {e}")
 
     def save_token_to_cache(self, token_info):
         from pymemcache import MemcacheError
         try:
             self.memcache.set(self.key, json.dumps(token_info))
         except MemcacheError as e:
-            logger.warning('Error saving token to cache' + str(e))
+            logger.warning(f"Error saving token to cache: {e}")

spotipy/client.py

@@ -263,8 +263,8 @@ def _internal_call(self, method, url, payload, params):
         if self.language is not None:
             headers["Accept-Language"] = self.language
 
-        logger.debug('Sending %s to %s with Params: %s Headers: %s and Body: %r ',
-                     method, url, args.get("params"), headers, args.get('data'))
+        logger.debug(f"Sending {method} to {url} with Params: "
+                     f"{args.get('params')} Headers: {headers} and Body: {args.get('data')!r}")
 
         try:
             response = self._session.request(
@@ -289,10 +289,8 @@ def _internal_call(self, method, url, payload, params):
                 msg = response.text or None
                 reason = None
 
-            logger.error(
-                'HTTP Error for %s to %s with Params: %s returned %s due to %s',
-                method, url, args.get("params"), response.status_code, msg
-            )
+            logger.error(f"HTTP Error for {method} to {url} with Params: "
+                         f"{args.get('params')} returned {response.status_code} due to {msg}")
 
             raise SpotifyException(
                 response.status_code,
@@ -317,7 +315,7 @@ def _internal_call(self, method, url, payload, params):
         except ValueError:
             results = None
 
-        logger.debug('RESULTS: %s', results)
+        logger.debug(f'RESULTS: {results}')
         return results
 
     def _get(self, url, args=None, payload=None, **kwargs):
@@ -2034,11 +2032,9 @@ def _is_uri(self, uri):
     def _search_multiple_markets(self, q, limit, offset, type, markets, total):
         if total and limit > total:
             limit = total
-            warnings.warn(
-                "limit was auto-adjusted to equal {} as it must not be higher than total".format(
-                    total),
-                UserWarning,
-            )
+            warnings.warn(f"limit was auto-adjusted to equal {total} "
+                          f"as it must not be higher than total",
+                          UserWarning)
 
         results = defaultdict(dict)
         item_types = [item_type + "s" for item_type in type.split(",")]

spotipy/exceptions.py

@@ -16,8 +16,9 @@ def __init__(self, http_status, code, msg, reason=None, headers=None):
         self.headers = headers
 
     def __str__(self):
-        return 'http status: {}, code:{} - {}, reason: {}'.format(
-            self.http_status, self.code, self.msg, self.reason)
+        return (f"http status: {self.http_status}, "
+                f"code: {self.code} - {self.msg}, "
+                f"reason: {self.reason}")
 
 
 class SpotifyOauthError(SpotifyBaseException):