diff --git a/export.py b/export.py
index 8fe7ce8fdce1..9ea2b936d740 100644
--- a/export.py
+++ b/export.py
@@ -742,9 +742,9 @@ def pipeline_coreml(model, im, file, names, y, prefix=colorstr("CoreML Pipeline:
     model = ct.models.MLModel(pipeline.spec)
     model.input_description["image"] = "Input image"
     model.input_description["iouThreshold"] = f"(optional) IOU Threshold override (default: {nms.iouThreshold})"
-    model.input_description["confidenceThreshold"] = (
-        f"(optional) Confidence Threshold override (default: {nms.confidenceThreshold})"
-    )
+    model.input_description[
+        "confidenceThreshold"
+    ] = f"(optional) Confidence Threshold override (default: {nms.confidenceThreshold})"
     model.output_description["confidence"] = 'Boxes × Class confidence (see user-defined metadata "classes")'
     model.output_description["coordinates"] = "Boxes × [x, y, width, height] (relative to image size)"
     model.save(f)  # pipelined
diff --git a/models/experimental.py b/models/experimental.py
index 6152cef1b389..834c7201fbd4 100644
--- a/models/experimental.py
+++ b/models/experimental.py
@@ -1,6 +1,5 @@
 # YOLOv5 🚀 by Ultralytics, AGPL-3.0 license
 """Experimental modules."""
-
 import math
 
 import numpy as np
diff --git a/utils/loggers/__init__.py b/utils/loggers/__init__.py
index 2a2c5d734c2e..c3fbded50a3c 100644
--- a/utils/loggers/__init__.py
+++ b/utils/loggers/__init__.py
@@ -1,6 +1,5 @@
 # YOLOv5 🚀 by Ultralytics, AGPL-3.0 license
 """Logging utils."""
-
 import json
 import os
 import warnings
diff --git a/utils/loggers/clearml/clearml_utils.py b/utils/loggers/clearml/clearml_utils.py
index 6a6ed7636c88..1bbea61effc2 100644
--- a/utils/loggers/clearml/clearml_utils.py
+++ b/utils/loggers/clearml/clearml_utils.py
@@ -1,5 +1,4 @@
 """Main Logger class for ClearML experiment tracking."""
-
 import glob
 import re
 from pathlib import Path
diff --git a/utils/loss.py b/utils/loss.py
index 9d09f9df0261..e8563e186f40 100644
--- a/utils/loss.py
+++ b/utils/loss.py
@@ -9,7 +9,7 @@
 
 
 def smooth_BCE(eps=0.1):
-    """Returns label smoothing BCE targets for reducing overfitting; pos: `1.0 - 0.5*eps`, neg: `0.5*eps`. For details see https://github.com/ultralytics/yolov3/issues/238#issuecomment-598028441"""
+    """Returns label smoothing BCE targets for reducing overfitting; pos: `1.0 - 0.5*eps`, neg: `0.5*eps`. For details see ttps://github.com/ultralytics/yolov3/issues/238#issuecomment-598028441"""
     return 1.0 - 0.5 * eps, 0.5 * eps