Avoid empty deezer_id string
@@ -66,7 +66,7 @@ class DeezerPlugin(BeetsPlugin):
:rtype: beets.autotag.hooks.AlbumInfo or None
"""
deezer_id = self._get_deezer_id('album', album_id)
- if deezer_id is None:
+ if not deezer_id:
return None
album_data = requests.get(self.album_url + deezer_id).json()
