diff --git a/__pycache__/cls_mth_fc.cpython-312.pyc b/__pycache__/cls_mth_fc.cpython-312.pyc
index 17c51db..67aa271 100644
Binary files a/__pycache__/cls_mth_fc.cpython-312.pyc and b/__pycache__/cls_mth_fc.cpython-312.pyc differ
diff --git a/cls_mth_fc.py b/cls_mth_fc.py
index 31ab390..9c0997d 100755
--- a/cls_mth_fc.py
+++ b/cls_mth_fc.py
@@ -23,8 +23,6 @@ gettext.bindtextdomain(APP, LOCALE_DIR)
 gettext.textdomain(APP)
 _ = gettext.gettext
 
-#wg_set = Path(Path.home() / ".config/wire_py/settings")
-
 
 class Create:
     """
@@ -129,12 +127,15 @@ class Create:
         else:
             print(f"Error with the following code... {process.returncode}")
 
+
 class LxTools(tk.Tk):
-    
+    """
+    Class LinuxTools methods that can also be used for other apps
+    """
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
-
     def theme_change_light(self, file=None):
         """
         Set light theme
@@ -148,7 +149,6 @@ class LxTools(tk.Tk):
                 theme_set2.writelines(lines3)
             self.color_label()
 
-
     def theme_change_dark(self, file=None):
         """
         Set dark theme
@@ -178,9 +178,15 @@ class LxTools(tk.Tk):
 
     @staticmethod
     def clean_files(dirname=None, file=None):
-        if dirname != None:
-                shutil.rmtree(dirname)
-        if file != None:       
+        """
+        method that can be added after need to delete a folder and a file when quitting.
+        Args:
+            dirname (_folder_, optional): _path to folder_. Defaults to None.
+            file (_file_, optional): _path to file_. Defaults to None.
+        """
+        if dirname is not None:
+            shutil.rmtree(dirname)
+        if file is not None:
             Path.unlink(file)
 
     @staticmethod
@@ -431,7 +437,7 @@ class Tunnel:
         in the user's home directory with correct right
         """
         now_time = datetime.now()
-        now_datetime = now_time.strftime(f"wg-exp-%m-%d-%Y-%H:%M")
+        now_datetime = now_time.strftime("wg-exp-%m-%d-%Y-%H:%M")
         tl = Tunnel.list()
 
         try:
@@ -473,8 +479,6 @@ class Tunnel:
             pass
 
 
-
-
 class Tooltip:
     """
     class for Tooltip
diff --git a/wirepy.py b/wirepy.py
index da37fcd..7cd4cae 100755
--- a/wirepy.py
+++ b/wirepy.py
@@ -372,7 +372,7 @@ class FrameWidgets(ttk.Frame):
                     pre_key = key[3]
                 check_call(["nmcli", "connection", "delete", select_tl])
                 self.l_box.delete(self.select_tunnel[0])
-                with open(set_filele, "r", encoding="utf-8") as set_f6:
+                with open(set_file, "r", encoding="utf-8") as set_f6:
                     lines6 = set_f6.readlines()
                     if (
                             select_tl == lines6[7].strip()