diff --git a/dreem/io/config.py b/dreem/io/config.py
index bdc1751..4ac8105 100644
--- a/dreem/io/config.py
+++ b/dreem/io/config.py
@@ -304,10 +304,9 @@ def get_dataset(
 
     @property
     def data_paths(self):
-        """Get data paths.
-        """
+        """Get data paths."""
         return self._vid_files
-    
+
     @data_paths.setter
     def data_paths(self, paths: tuple[str, list[str]]):
         """Set data paths.
diff --git a/dreem/training/train.py b/dreem/training/train.py
index 74f04f6..b6fbd3d 100644
--- a/dreem/training/train.py
+++ b/dreem/training/train.py
@@ -80,8 +80,12 @@ def run(cfg: DictConfig):
 
     if run_logger is not None and isinstance(run_logger, pl.loggers.wandb.WandbLogger):
         data_paths = train_cfg.data_paths
-        flattened_paths = [[item] for sublist in data_paths.values() for item in sublist]
-        run_logger.log_text("training_files", columns=["data_paths"], data=flattened_paths)
+        flattened_paths = [
+            [item] for sublist in data_paths.values() for item in sublist
+        ]
+        run_logger.log_text(
+            "training_files", columns=["data_paths"], data=flattened_paths
+        )
 
     callbacks = []
     _ = callbacks.extend(train_cfg.get_checkpointing())