fix metadata reading

afrispeech-200.py

@@ -134,17 +134,15 @@ class AfriSpeech(datasets.GeneratorBasedBuilder):
         # from the dataset.
         # The `key` is here for legacy reason (tfds) and is not important in itself.
 
-        data_fields = list(self._info().features.keys())
+        data_fields = [key for key in self._info().features.keys() if key not in ["audio", "path"]]
         metadata = {}
         with open(meta_path, "r", encoding="utf-8") as f:
             reader = csv.DictReader(f)
             for row in tqdm(reader, desc="Reading metadata..."):
                 row["speaker_id"] = row["user_ids"]
+                audio_id = row["audio_paths"].split("/")[-1]
                 # if data is incomplete, fill with empty values
-                for field in data_fields:
-                    if field not in row:
-                        row[field] = ""
-                metadata[row["audio_paths"].split("/")[-1]] = row
+                metadata[audio_id] = {field: row.get(field, "") for field in data_fields}
 
         for i, audio_archive in enumerate(archives):
             for filename, file in audio_archive: