modified chmod to handle exceptions

Background_Substraction.py

@@ -57,13 +57,20 @@ present_dir = os.path.dirname(os.path.realpath(__file__))
 input_path = os.path.join(present_dir, 'wetransfer_data-zip_2024-05-17_1431')
 base_dir = input_path
 
-# Function to change permissions recursively
+# Function to change permissions recursively with error handling
 def change_permissions_recursive(path, mode):
     for root, dirs, files in os.walk(path):
         for dir in dirs:
-            os.chmod(os.path.join(root, dir), mode)
+            try:
+                os.chmod(os.path.join(root, dir), mode)
+            except Exception as e:
+                print(f"An error occurred while changing permissions for directory {os.path.join(root, dir)}: {e}")
         for file in files:
-            os.chmod(os.path.join(root, file), mode)
+            try:
+                os.chmod(os.path.join(root, file), mode)
+            except Exception as e:
+                print(f"An error occurred while changing permissions for file {os.path.join(root, file)}: {e}")
+
 
 change_permissions_recursive(base_dir, 0o777)