diff --git a/src/drive_handle.py b/src/drive_handle.py
index 371cade37866df0e16ec15b300d265bdced8af33..3ba65a5c266066e1df64ea66031786f74d4511cc 100644
--- a/src/drive_handle.py
+++ b/src/drive_handle.py
@@ -1,5 +1,4 @@
 import ctypes
-import errno
 import os
 import shutil
 import subprocess
@@ -152,13 +151,13 @@ class DriveHandle:
             path (str): The path to the pattern file
         """
         print(colored(f"[DriveHandle] Writing a file ({path}) with a rolling pattern to fill the disk.", "light_grey"))
-        pattern_start_symbol : chr = 'A'
-        iteration : int = 0
+        pattern_start_symbol: chr = 'A'
+        iteration: int = 0
         (_, _, cluster_size) = self.get_allocation_unit_sizes()
         progressbar = Spinner('[DriveHandle] Writing the pattern file')
         with open(path, "wb") as file_descriptor:
-            while os.path.getsize(path)+cluster_size < self.get_free_drive_space():
-                current_pattern_symbol : chr = chr(ord(pattern_start_symbol)+iteration)
+            while os.path.getsize(path) + cluster_size < self.get_free_drive_space():
+                current_pattern_symbol: chr = chr(ord(pattern_start_symbol) + iteration)
                 file_descriptor.write(current_pattern_symbol.encode() * cluster_size)
                 iteration = (iteration + 1) % 26
                 progressbar.next()