1 files changed, 17 insertions, 1 deletions
diff --git a/Lib/idlelib/run.py b/Lib/idlelib/run.py
index b0a4794..dbf046b 100644
--- a/Lib/idlelib/run.py
+++ b/Lib/idlelib/run.py
@@ -7,6 +7,7 @@ import traceback
 import _thread as thread
 import threading
 import queue
+import tkinter
 
 from idlelib import CallTips
 from idlelib import AutoComplete
@@ -39,6 +40,17 @@ else:
         return s
     warnings.formatwarning = idle_formatwarning_subproc
 
+
+tcl = tkinter.Tcl()
+
+
+def handle_tk_events(tcl=tcl):
+    """Process any tk events that are ready to be dispatched if tkinter
+    has been imported, a tcl interpreter has been created and tk has been
+    loaded."""
+    tcl.eval("update")
+
+
 # Thread shared globals: Establish a queue between a subthread (which handles
 # the socket) and the main thread (which runs user code), plus global
 # completion, exit and interruptable (the main thread) flags:
@@ -94,6 +106,7 @@ def main(del_exitfunc=False):
             try:
                 seq, request = rpc.request_queue.get(block=True, timeout=0.05)
             except queue.Empty:
+                handle_tk_events()
                 continue
             method, args, kwargs = request
             ret = method(*args, **kwargs)
@@ -168,7 +181,9 @@ def print_exception():
             print_exc(type(cause), cause, cause.__traceback__)
             print("\nThe above exception was the direct cause "
                   "of the following exception:\n", file=efile)
-        elif context is not None and context not in seen:
+        elif (context is not None and
+              not exc.__suppress_context__ and
+              context not in seen):
             print_exc(type(context), context, context.__traceback__)
             print("\nDuring handling of the above exception, "
                   "another exception occurred:\n", file=efile)
@@ -312,6 +327,7 @@ class MyHandler(rpc.RPCHandler):
         sys.stdin = _RPCInputFile(self.console)
         sys.stdout = _RPCOutputFile(self.get_remote_proxy("stdout"))
         sys.stderr = _RPCOutputFile(self.get_remote_proxy("stderr"))
+        sys.displayhook = rpc.displayhook
         # page help() text to shell.
         import pydoc # import must be done here to capture i/o binding
         pydoc.pager = pydoc.plainpager