diff --git a/train.py b/train.py
index dbdec11..248dd8b 100644
--- a/train.py
+++ b/train.py
@@ -99,7 +99,7 @@ def run(rank, n_gpus, hps):
         name=utils.latest_checkpoint_path(hps.model_dir, "D_*.pth")
         global_step=int(name[name.rfind("_")+1:name.rfind(".")])+1
         #global_step = (epoch_str - 1) * len(train_loader)
-    except:
+    except: # noqa: E722 I have no idea about this CC: @ylzz1997
         print("load old checkpoint failed...")
         epoch_str = 1
         global_step = 0
diff --git a/utils.py b/utils.py
index c3336b1..b9fe21a 100644
--- a/utils.py
+++ b/utils.py
@@ -161,7 +161,7 @@ def load_checkpoint(checkpoint_path, model, optimizer=None, skip_optimizer=False
             # print("load", k)
             new_state_dict[k] = saved_state_dict[k]
             assert saved_state_dict[k].shape == v.shape, (saved_state_dict[k].shape, v.shape)
-        except:
+        except: # noqa: E722 I have no idea about this CC: @ylzz1997
             print("error, %s is not in the checkpoint" % k)
             logger.info("%s is not in the checkpoint" % k)
             new_state_dict[k] = v
diff --git a/vdecoder/hifiganwithsnake/alias/__init__.py b/vdecoder/hifiganwithsnake/alias/__init__.py
index 117e5ac..be97a33 100644
--- a/vdecoder/hifiganwithsnake/alias/__init__.py
+++ b/vdecoder/hifiganwithsnake/alias/__init__.py
@@ -1,6 +1,6 @@
 # Adapted from https://github.com/junjun3518/alias-free-torch under the Apache License 2.0
 #   LICENSE is in incl_licenses directory.
 
-from .act import *
-from .filter import *
-from .resample import *
+from .act import *  # noqa: F403
+from .filter import *  # noqa: F403
+from .resample import *  # noqa: F403