diff --git a/myria3d/callbacks/comet_callbacks.py b/myria3d/callbacks/comet_callbacks.py
index 4446b83b..84a82d0c 100755
--- a/myria3d/callbacks/comet_callbacks.py
+++ b/myria3d/callbacks/comet_callbacks.py
@@ -70,4 +70,4 @@ def setup(self, trainer, pl_module, stage):
         if logger:
             log_path = os.getcwd()
             log.info(f"----------------\n LOGS DIR is {log_path}\n ----------------")
-            logger.experiment.log_parameter("experiment_logs_dirpath", log_path)
\ No newline at end of file
+            logger.experiment.log_parameter("experiment_logs_dirpath", log_path)
diff --git a/myria3d/models/model.py b/myria3d/models/model.py
index 8e49b319..67c2752d 100755
--- a/myria3d/models/model.py
+++ b/myria3d/models/model.py
@@ -1,15 +1,13 @@
-from typing import Optional
-
 import torch
 from pytorch_lightning import LightningModule
 from torch import nn
 from torch_geometric.data import Batch
 from torch_geometric.nn import knn_interpolate
-from myria3d.metrics.iou import iou
+from torchmetrics.classification import MulticlassJaccardIndex
 
+from myria3d.metrics.iou import iou
 from myria3d.models.modules.pyg_randla_net import PyGRandLANet
 from myria3d.utils import utils
-from torchmetrics.classification import MulticlassJaccardIndex
 
 log = utils.get_logger(__name__)
 
diff --git a/myria3d/predict.py b/myria3d/predict.py
index 50c03f62..7c50219e 100644
--- a/myria3d/predict.py
+++ b/myria3d/predict.py
@@ -5,7 +5,7 @@
 import hydra
 import torch
 from omegaconf import DictConfig
-from pytorch_lightning import LightningDataModule, LightningModule
+from pytorch_lightning import LightningDataModule
 from tqdm import tqdm
 
 from myria3d.models.model import Model
diff --git a/tests/runif.py b/tests/runif.py
index ec5da504..7a2ac5f6 100644
--- a/tests/runif.py
+++ b/tests/runif.py
@@ -1,5 +1,4 @@
 import pytest
-import torch
 from lightning.pytorch.accelerators import find_usable_cuda_devices
 
 """
@@ -39,7 +38,7 @@ def __new__(
             try:
                 find_usable_cuda_devices(min_gpus)
                 conditions.append(False)
-            except (ValueError, RuntimeError) as _:
+            except (ValueError, RuntimeError):
                 conditions.append(True)
                 reasons.append(f"GPUs>={min_gpus}")