diff --git a/pudb/debugger.py b/pudb/debugger.py
index 73a61ac9..5aa7fa56 100644
--- a/pudb/debugger.py
+++ b/pudb/debugger.py
@@ -947,14 +947,14 @@ def helpside(w, size, key):
                             self.rhs_col_sigwrap),
                         ],
                     dividechars=1)
-        
+
         background = urwid.AttrMap(self.columns, "background")
 
         self.caption = urwid.Text("")
         self.header = urwid.AttrMap(self.caption, "header")
-        
+
         self.top = SignalWrap(urwid.Frame(background, self.header))
-        
+
         if CONFIG["hide_header"]:
             self.top._w.header = None
 
@@ -2423,7 +2423,7 @@ def __call__(subself, w, size, key):  # noqa: N805, E501 # pylint: disable=no-se
                 width=("relative", 75),
                 height=("relative", 75),
                 )
-        
+
         w = Attr(w, "background")
 
         return self.event_loop(w)[0]
@@ -2852,7 +2852,6 @@ def interaction(self, exc_tuple, show_exc_dialog=True):
             self.show_header()
             CONFIG["hide_header"] = False
 
-
         self.caption.set_text(caption)
         self.event_loop()
 
@@ -2964,7 +2963,7 @@ def make_frame_ui(i, frame_lineno):
 
     def update_cmdline_win(self):
         self.set_cmdline_state(not CONFIG["hide_cmdline_win"])
-        
+
     def update_header(self):
         """Update the header to reflect the current settings."""
         self.top._w.header = self.header if not CONFIG["hide_header"] else None
diff --git a/pudb/settings.py b/pudb/settings.py
index c43950ca..67a9e2fd 100644
--- a/pudb/settings.py
+++ b/pudb/settings.py
@@ -180,7 +180,7 @@ def _update_prompt_on_quit():
 
     def _update_hide_cmdline_win():
         ui.update_cmdline_win()
-        
+
     def _update_hide_header():
         ui.update_header()
 
@@ -226,7 +226,7 @@ def _update_config(check_box, new_state, option_newvalue):
             new_conf_dict["hide_cmdline_win"] = not check_box.get_state()
             conf_dict.update(new_conf_dict)
             _update_hide_cmdline_win()
-            
+
         elif option == "hide_header":
             new_conf_dict["hide_header"] = not check_box.get_state()
             conf_dict.update(new_conf_dict)
@@ -279,7 +279,7 @@ def _update_config(check_box, new_state, option_newvalue):
                                       "when not in use",
             bool(conf_dict["hide_cmdline_win"]), on_state_change=_update_config,
                 user_data=("hide_cmdline_win", None))
-    
+
     hide_header = urwid.CheckBox("Hide header from top of window",
             bool(conf_dict["hide_header"]), on_state_change=_update_config,
                 user_data=("hide_header", None))