diff --git a/topostats/grains.py b/topostats/grains.py
index f8ce199f63..778f753c08 100644
--- a/topostats/grains.py
+++ b/topostats/grains.py
@@ -940,9 +940,7 @@ def vet_class_sizes_single_grain(
                 continue
 
             lower_threshold, upper_threshold = [
-                vetting_criteria[1:]
-                for vetting_criteria in class_size_thresholds
-                if vetting_criteria[0] == class_index
+                vetting_criteria[1:] for vetting_criteria in class_size_thresholds if vetting_criteria[0] == class_index
             ][0]
 
             if lower_threshold is not None:
@@ -1669,9 +1667,7 @@ def extract_grains_from_full_image_tensor(
 
             # Crop the tensor
             # Get the bounding box for the region
-            flat_bounding_box: tuple[int, int, int, int] = tuple(
-                flat_region.bbox
-            )  # min_row, min_col, max_row, max_col
+            flat_bounding_box: tuple[int, int, int, int] = tuple(flat_region.bbox)  # min_row, min_col, max_row, max_col
 
             # Pad the mask
             padded_flat_bounding_box = pad_bounding_box(
diff --git a/topostats/processing.py b/topostats/processing.py
index 3f80df390e..d2dd8d3948 100644
--- a/topostats/processing.py
+++ b/topostats/processing.py
@@ -811,9 +811,7 @@ def run_splining(
                         f"[{filename}] : No grains exist for the {direction} direction. Skipping disordered_tracing for {direction}."
                     )
                     splining_grainstats = create_empty_dataframe(column_set="grainstats", index_col="grain_number")
-                    splining_molstats = create_empty_dataframe(
-                        column_set="mol_statistics", index_col="molecule_number"
-                    )
+                    splining_molstats = create_empty_dataframe(column_set="mol_statistics", index_col="molecule_number")
                     raise ValueError(f"No grains exist for the {direction} direction")
                 # if grains are found
                 (
@@ -1195,9 +1193,7 @@ def process_scan(
     else:
         grainstats_df = create_empty_dataframe(column_set="grainstats", index_col="grain_number")
         molstats_df = create_empty_dataframe(column_set="mol_statistics", index_col="molecule_number")
-        disordered_tracing_stats = create_empty_dataframe(
-            column_set="disordered_tracing_statistics", index_col="index"
-        )
+        disordered_tracing_stats = create_empty_dataframe(column_set="disordered_tracing_statistics", index_col="index")
         height_profiles = {}
 
     # Get image statistics