Keybindings with the Shift modifier now work correctly. So do bindings

which use the Space key.  Limit unmodified user keybindings to the
function keys.
Python Bug 775353, IDLEfork Bugs 755647, 761557

Improve error handling during startup if there's no Tkinter.

M NEWS.txt
M PyShell.py
M config-keys.def
M configHandler.py
M keybindingDialog.py

Backport candidate.

Lib/idlelib/PyShell.py

@@ -16,7 +16,12 @@ import exceptions
 import linecache
 from code import InteractiveInterpreter
 
-from Tkinter import *
+try:
+    from Tkinter import *
+except ImportError:
+    print>>sys.__stderr__, "** IDLE can't import Tkinter.  " \
+                           "Your Python may not be configured for Tk. **"
+    sys.exit(1)
 import tkMessageBox
 
 from EditorWindow import EditorWindow, fixwordbreaks