diff -r 06cae9806d74 Lib/idlelib/PyShell.py
--- a/Lib/idlelib/PyShell.py	Fri Oct 14 14:30:54 2011 -0500
+++ b/Lib/idlelib/PyShell.py	Sun Oct 30 12:09:49 2011 -0500
@@ -338,6 +338,7 @@
         self.restarting = False
         self.subprocess_arglist = None
         self.port = PORT
+        self.original_compiler_flags = self.compile.compiler.flags
 
     rpcclt = None
     rpcsubproc = None
@@ -445,6 +446,7 @@
             gui = RemoteDebugger.restart_subprocess_debugger(self.rpcclt)
             # reload remote debugger breakpoints for all PyShellEditWindows
             debug.load_breakpoints()
+        self.compile.compiler.flags = self.original_compiler_flags
         self.restarting = False
         return self.rpcclt