replace more "with open"

wirepy.py

@@ -23,6 +23,8 @@ Create.decrypt()
 
 tcl_path: Path = Path("/usr/share/TK-Themes")
 set_file: Path = Path(Path.home() / ".config/wire_py/settings")
+keys: Path = Path(Path.home() / ".config/wire_py/keys")
+ 
 tips = LxTools.if_tip(set_file)
 folder_path: Path = Path("/tmp/tlecdcwg/")
 user_file = Path("/tmp/.log_user")
@@ -140,7 +142,7 @@ class FrameWidgets(ttk.Frame):
 
         # About BTN Menu / Label
         self.about_btn = ttk.Button(
-        self.menu_frame, text=_("About"), style="Toolbutton", command=self.info)
+        self.menu_frame, text=_("About"), style="Toolbutton", command=self.about)
         self.about_btn.grid(column=2, columnspan=2, row=0)
         self.readme = tk.Menu(self)
 
@@ -332,7 +334,10 @@ class FrameWidgets(ttk.Frame):
         self.on_off()
 
     @staticmethod
-    def info():
+    def about() -> None:
+        """
+        a tk.Toplevel window
+        """
         def link_btn() -> str | None:
             webbrowser.open("https://git.ilunix.de/punix/Wire-Py")
 
@@ -343,7 +348,7 @@ class FrameWidgets(ttk.Frame):
 
         LxTools.msg_window(img_i, img_i, _("Info"), msg_t, _("Go to Wire-Py git"), link_btn)
 
-    def theme_change_light(self):
+    def theme_change_light(self) -> None:
         """
         Set a light theme
         """
@@ -354,7 +359,7 @@ class FrameWidgets(ttk.Frame):
             Path(set_file).write_text(''.join(lines), encoding="utf-8")
             self.color_label()
 
-    def theme_change_dark(self):
+    def theme_change_dark(self) -> None:
         """
         Set a dark theme
         """
@@ -435,7 +440,7 @@ class FrameWidgets(ttk.Frame):
             if is_encrypt.is_file():
                 Path.unlink(f"{Path.home()}/.config/wire_py/{select_tl}.dat")
             Path.unlink(f"/tmp/tlecdcwg/{select_tl}.conf")
-            with open(f"{Path.home()}/.config/wire_py/keys", "r", encoding="utf-8") as readfile:
+            with open(keys, "r", encoding="utf-8") as readfile:
                 with open(f"{Path.home()}/.config/wire_py/keys2", "w", encoding="utf-8") as writefile:
                     for line in readfile:
                         if pre_key not in line.strip("\n"):
@@ -475,7 +480,9 @@ class FrameWidgets(ttk.Frame):
                 LxTools.msg_window(img_w, img_i2, sl, pfit)
 
     def tl_rename(self) -> None:
-
+        """
+        method to rename a tunnel
+        """
         special_characters = ["\\", "/", "{", "}", " "]
 
         if len(self.lb_rename.get()) > 12:
@@ -531,19 +538,8 @@ class FrameWidgets(ttk.Frame):
 
     def import_sl(self) -> None:
         """
-        Import Methode for Wireguard config Files.
+        validity check of wireguard config files
-        Before importing, it is checked whether PrivateKey and PublicKey are in the file.
-        If True, then it is checked whether the PreSharedKey is already in the key file
-        to avoid an import error so that no double wgconf are imported.
-        Thus, tunnels can be renamed without the problems arising.
-        If False, then the key is written into the file.
-        Furthermore, it is checked whether the name is longer than 12 characters.
-        If True, then the name is automatically shortened to 12 characters
-        and then imported.
-        If in each case false comes out, a corresponding window comes to
-        inform the user that something is wrong.
         """
-
         Create.dir_and_files()
 
         try:
@@ -560,8 +556,8 @@ class FrameWidgets(ttk.Frame):
                     key = Tunnel.con_to_dict(file)
                     pre_key = key[3]
                     if len(pre_key) != 0:
-                        with open(f"{Path.home()}/.config/wire_py/keys", "r", encoding="utf-8") as readfile:
+                    
-                            p_key = readfile.readlines()
+                        p_key = keys.read_text(encoding="utf-8")
                         if pre_key in p_key or f"{pre_key}\n" in p_key:
 
                             msg_t = _("Tunnel already available!\nPlease use another file for import")
@@ -569,7 +565,7 @@ class FrameWidgets(ttk.Frame):
 
                         else:
 
-                                with open(f"{Path.home()}/.config/wire_py/keys", "a", encoding="utf-8") as keyfile:
+                            with open(keys, "a", encoding="utf-8") as keyfile:
                                 keyfile.write(f"{pre_key}\r")
                                 if len(path_split1) > 17:
                                     p1 = shutil.copy(filepath, "/tmp/tlecdcwg/")
@@ -650,7 +646,6 @@ class FrameWidgets(ttk.Frame):
         Returns:
             tuple[str, str]: tuple with tunnel data
         """
-
         wg_read = f"/tmp/tlecdcwg/{tunnel_name}.conf"
         with open(wg_read, "r", encoding="utf-8") as file:
             data = Tunnel.con_to_dict(file)
@@ -719,7 +714,6 @@ class FrameWidgets(ttk.Frame):
         Displays the value address, DNS and peer in the labels
         or empty it again
         """
-
         # Address Label
         self.add = tk.StringVar()
         self.add.set(f"{_("Address:    ")}{data[0]}")
@@ -731,7 +725,6 @@ class FrameWidgets(ttk.Frame):
     def reset_fields(self) -> None:
         """
         reset data from labels
-
         """
         fields = [self.add, self.DNS, self.enp]
         for field in fields:
@@ -741,7 +734,6 @@ class FrameWidgets(ttk.Frame):
         """
         shows data in the label
         """
-
         # Address Label
         self.address = ttk.Label(self.lb_frame, textvariable=self.add, foreground="#0071ff")
         self.address.grid(column=0, row=5, sticky="w", padx=10, pady=6)