diff --git a/Lib/idlelib/Bindings.py b/Lib/idlelib/Bindings.py
index 16113ab..2e88c91 100644
--- a/Lib/idlelib/Bindings.py
+++ b/Lib/idlelib/Bindings.py
@@ -75,7 +75,7 @@
    ]),
  ('help', [
    ('_About IDLE', '<<about-idle>>'),
-   ('IDLE _Readme', '<<view-readme>>'),   
+   ('IDLE _Readme', '<<view-readme>>'),
    None,
    ('_IDLE Help', '<<help>>'),
    ('Python _Docs', '<<python-docs>>'),
diff --git a/Lib/idlelib/configHandler.py b/Lib/idlelib/configHandler.py
index dac9d10..fd9cbc4 100644
--- a/Lib/idlelib/configHandler.py
+++ b/Lib/idlelib/configHandler.py
@@ -4,7 +4,7 @@
 the available configuration files and the design implemented to update user
 configuration information.  In particular, user configuration choices which
 duplicate the defaults will be removed from the user's configuration files,
-and if a file becomes empty, it will be deleted.  
+and if a file becomes empty, it will be deleted.
 
 The contents of the user files may be altered using the Options/Configure IDLE
 menu to access the configuration GUI (configDialog.py), or manually.
@@ -570,7 +570,7 @@
 
     def GetExtraHelpSourceList(self,configSet):
         """Fetch list of extra help sources from a given configSet.
-        
+
         Valid configSets are 'user' or 'default'.  Return a list of tuples of
         the form (menu_item , path_to_help_file , option), or return the empty
         list.  'option' is the sequence number of the help resource.  'option'
diff --git a/Lib/idlelib/configHelpSourceEdit.py b/Lib/idlelib/configHelpSourceEdit.py
index 25569ca..b781884 100644
--- a/Lib/idlelib/configHelpSourceEdit.py
+++ b/Lib/idlelib/configHelpSourceEdit.py
@@ -94,7 +94,7 @@
         file = opendialog.show(initialdir=dir, initialfile=base)
         if file:
             self.path.set(file)
-        
+
     def MenuOk(self):
         "Simple validity check for a sensible menu item name"
         menuOk = True