diff --git a/api/funkwhale_api/radios/radios.py b/api/funkwhale_api/radios/radios.py
index ef1931d5f..88b81275f 100644
--- a/api/funkwhale_api/radios/radios.py
+++ b/api/funkwhale_api/radios/radios.py
@@ -275,7 +275,9 @@ class SimilarAcousticRadio(RelatedObjectRadio):
     def filter_queryset(self, queryset):
         queryset = super().filter_queryset(queryset)
         mbids_regex = self.get_regex()
-        return queryset.filter(mbid__regex=r'({mbids_regex})'.format(mbids_regex=mbids_regex))
+        return queryset.filter(
+            mbid__regex=r'({mbids_regex})'.format(mbids_regex=mbids_regex)
+        )
 
 
 @registry.register(name="artist")
diff --git a/api/funkwhale_api/radios/utils.py b/api/funkwhale_api/radios/utils.py
index 1190b78b5..7fb7c0289 100644
--- a/api/funkwhale_api/radios/utils.py
+++ b/api/funkwhale_api/radios/utils.py
@@ -5,8 +5,20 @@ import requests
 
 logger = logging.getLogger(__name__)
 
-VALID_METRICS = ['mfccs', 'mfccsw', 'gfccs', 'gfccsw', 'key', 'bpm', 'onsetrate', 'moods',
-                 'instruments', 'dortmund', 'rosamerica', 'tzanetakis']
+VALID_METRICS = [
+    "mfccs",
+    "mfccsw",
+    "gfccs",
+    "gfccsw",
+    "key",
+    "bpm",
+    "onsetrate",
+    "moods",
+    "instruments",
+    "dortmund",
+    "rosamerica",
+    "tzanetakis"
+]
 
 
 class EndpointError(Exception):
@@ -16,20 +28,25 @@ class EndpointError(Exception):
 def get_similar_tracks_mbids_from_mbid(mbid, annoy_similarity):
 
     if annoy_similarity not in VALID_METRICS:
-        raise AttributeError("Metric %s is not valid. Must be one of : " + print(VALID_METRICS))
+        raise AttributeError(
+            "Metric %s is not valid. Must be one of : " + print(VALID_METRICS)
+        )
 
-    headers = {'Content-Type': 'application/json'}
+    headers = {"Content-Type': 'application/json"}
     endpoint = "acousticbrainz.org/api/v1/similarity"
     similar_tracks_mbids = []
     similar_tracks = requests.get(
-        'https://{endpoint}/{annoy_similarity}/?recording_ids={mbid}&remove_dups&n_neighbours=1000'
-        .format(endpoint=endpoint, annoy_similarity=annoy_similarity, mbid=mbid), headers=headers
+        "https://{endpoint}/{annoy_similarity}/?recording_ids={mbid}&remove_dups&n_neighbours=1000"
+        .format(
+            endpoint=endpoint, annoy_similarity=annoy_similarity, mbid=mbid
+        ),
+        headers=headers
     )
     if similar_tracks.status_code != 200:
         logger.warning("Error while querying {endpoint!r} : {similar_tracks.content!r}")
         raise EndpointError
 
     j = json.loads(similar_tracks.content)
-    for tracks in j['{mbid}'.format(mbid=mbid)]['0']:
-        similar_tracks_mbids.append(tracks['recording_mbid'])
+    for tracks in j["{mbid}".format(mbid=mbid)]["0"]:
+        similar_tracks_mbids.append(tracks["recording_mbid"])
     return similar_tracks_mbids