Index: run.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/idlelib/run.py,v
retrieving revision 1.29
diff -c -r1.29 run.py
*** run.py	4 Jul 2004 01:25:56 -0000	1.29
--- run.py	12 Jul 2004 20:01:44 -0000
***************
*** 34,39 ****
--- 34,59 ----
          return s
      warnings.formatwarning = idle_formatwarning_subproc
  
+ # _tkinter.dooneevent is a function which handles any pending Tk events, and
+ # returns 1 if there are more to be done. Here we emulate the behaviour in
+ # the default interactive shell, and handle Tk events while a command isn't
+ # being executed.
+ # Handling Tk events is done only if there is an active tkapp object. It is
+ # created by Tkinter.Tk.__init__, which sets Tkinter._default_root to itself,
+ # when Tkinter._support_default_root is True (the default). Here we check
+ # whether Tkinter._default_root is something before we handle Tk events.
+ # If _tkinter is not available, use a dummy function.
+ 
+ try:
+     import _tkinter
+ except ImportError:
+     handle_tk_events = lambda: None
+ else:
+     def handle_tk_events():
+         if "Tkinter" in sys.modules and sys.modules["Tkinter"]._default_root:
+             while _tkinter.dooneevent(_tkinter.DONT_WAIT):
+                 pass
+ 
  # Thread shared globals: Establish a queue between a subthread (which handles
  # the socket) and the main thread (which runs user code), plus global
  # completion and exit flags:
***************
*** 84,89 ****
--- 104,110 ----
              try:
                  seq, request = rpc.request_queue.get(0)
              except Queue.Empty:
+                 handle_tk_events()
                  time.sleep(0.05)
                  continue
              method, args, kwargs = request