toplist: Check if None instead of falsy
toplist: Check if None instead of falsy

kotamat/pyspotify,jodal/pyspotify,jodal/pyspotify,jodal/pyspotify,mopidy/pyspotify,kotamat/pyspotify,mopidy/pyspotify,kotamat/pyspotify,felix1m/pyspotify,felix1m/pyspotify,felix1m/pyspotify