1. Restore the capability to run and debug without a subprocess.

2. Add an indicator to the shell startup notice when running w/o
   subprocess.
3. Improve exception reporting when running a command or script from the
   command line.
4. Clarify the fact that breakpoints set or cleared after a file is
   saved will revert to the saved state if the file is closed without
   re-saving.
5. If user tries to exit or restart when user code is running, interrupt
   the user code.  This helps to eliminate occasional hanging
   subprocesses on Windows (except for Freddy :).

M NEWS.txt
M PyShell.py
M ScriptBinding.py

Lib/idlelib/ScriptBinding.py

@@ -22,6 +22,7 @@ import string
 import tabnanny
 import tokenize
 import tkMessageBox
+import PyShell
 
 IDENTCHARS = string.ascii_letters + string.digits + "_"
 
@@ -38,8 +39,6 @@ To fix case 2, change all tabs to spaces by using Select All followed \
 by Untabify Region (both in the Edit menu)."""
 
 
-# XXX 11Jun02 KBK TBD Implement stop-execution
-
 class ScriptBinding:
 
     menudefs = [
@@ -124,7 +123,19 @@ class ScriptBinding:
         flist = self.editwin.flist
         shell = flist.open_shell()
         interp = shell.interp
-        interp.restart_subprocess()
+        if PyShell.use_subprocess:
+            shell.restart_shell()
+            if shell.executing:
+                delay = 2700
+            else:
+                delay = 500
+            # Wait for the interrupt and reset to finish
+            shell.text.after(delay, self.run_module_event2, interp,
+                             filename, code)
+        else:
+            self.run_module_event2(interp, filename, code)
+
+    def run_module_event2(self, interp, filename, code):
         # XXX Too often this discards arguments the user just set...
         interp.runcommand("""if 1:
             _filename = %s