Issue #13884: Idle: Remove tearoff lines from menus. Patch by Roger Serwy.

Author: terryjreedy

Doc/library/idle.rst

@@ -37,8 +37,6 @@ context menu.
 
 IDLE's menus dynamically change based on which window is currently selected.
 Each menu documented below indicates which window type it is associated with.
-Click on the dotted line at the top of a menu to "tear it off": a separate
-window containing the menu is created (for Unix and Windows only).
 
 File menu (Shell and Editor)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Lib/idlelib/EditorWindow.py

@@ -316,7 +316,7 @@ def __init__(self, flist=None, filename=None, key=None, root=None):
         io.set_filename_change_hook(self.filename_change_hook)
 
         # Create the recent files submenu
-        self.recent_files_menu = Menu(self.menubar)
+        self.recent_files_menu = Menu(self.menubar, tearoff=0)
         self.menudict['file'].insert_cascade(3, label='Recent Files',
                                              underline=0,
                                              menu=self.recent_files_menu)
@@ -477,12 +477,13 @@ def createmenubar(self):
         self.menudict = menudict = {}
         for name, label in self.menu_specs:
             underline, label = prepstr(label)
-            menudict[name] = menu = Menu(mbar, name=name)
+            menudict[name] = menu = Menu(mbar, name=name, tearoff=0)
             mbar.add_cascade(label=label, menu=menu, underline=underline)
 
         if macosxSupport.isCarbonTk():
             # Insert the application menu
-            menudict['application'] = menu = Menu(mbar, name='apple')
+            menudict['application'] = menu = Menu(mbar, name='apple',
+                                                tearoff=0)
             mbar.add_cascade(label='IDLE', menu=menu)
 
         self.fill_menus()

Lib/idlelib/help.txt

@@ -1,8 +1,5 @@
 [See the end of this file for ** TIPS ** on using IDLE !!]
 
-Click on the dotted line at the top of a menu to "tear it off": a
-separate window containing the menu is created.
-
 File Menu:
 
 	New File         -- Create a new editing window

Lib/idlelib/macosxSupport.py

@@ -147,7 +147,7 @@ def overrideRootMenu(root, flist):
     root.configure(menu=menubar)
     menudict = {}
 
-    menudict['windows'] = menu = Menu(menubar, name='windows')
+    menudict['windows'] = menu = Menu(menubar, name='windows', tearoff=0)
     menubar.add_cascade(label='Window', menu=menu, underline=0)
 
     def postwindowsmenu(menu=menu):
@@ -187,7 +187,8 @@ def help_dialog(event=None):
 
     if isCarbonTk():
         # for Carbon AquaTk, replace the default Tk apple menu
-        menudict['application'] = menu = Menu(menubar, name='apple')
+        menudict['application'] = menu = Menu(menubar, name='apple',
+                                              tearoff=0)
         menubar.add_cascade(label='IDLE', menu=menu)
         Bindings.menudefs.insert(0,
             ('application', [