When open a file with characters above the range (U+0000-U+FFFF), IDLE quit without any report. For example, open this file C:\Python33\lib\test\test_re.py

The below is Traceback info, the last line tells the reason. I just hope IDLE say something before quit, so we can know what happend.

I have checked Python 3.3.5 and 3.4.0, they have the same problem. I didn't find a 3.5 build, so I can't test this problem under 3.5.

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Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python33\lib\tkinter\__init__.py", line 1489, in __call__
    return self.func(*args)
  File "C:\Python33\lib\idlelib\IOBinding.py", line 186, in open
    flist.open(filename)
  File "C:\Python33\lib\idlelib\FileList.py", line 36, in open
    edit = self.EditorWindow(self, filename, key)
  File "C:\Python33\lib\idlelib\PyShell.py", line 126, in __init__
    EditorWindow.__init__(self, *args)
  File "C:\Python33\lib\idlelib\EditorWindow.py", line 288, in __init__
    if io.loadfile(filename):
  File "C:\Python33\lib\idlelib\IOBinding.py", line 236, in loadfile
    self.text.insert("1.0", chars)
  File "C:\Python33\lib\idlelib\Percolator.py", line 25, in insert
    self.top.insert(index, chars, tags)
  File "C:\Python33\lib\idlelib\UndoDelegator.py", line 81, in insert
    self.addcmd(InsertCommand(index, chars, tags))
  File "C:\Python33\lib\idlelib\UndoDelegator.py", line 116, in addcmd
    cmd.do(self.delegate)
  File "C:\Python33\lib\idlelib\UndoDelegator.py", line 219, in do
    text.insert(self.index1, self.chars, self.tags)
  File "C:\Python33\lib\idlelib\ColorDelegator.py", line 85, in insert
    self.delegate.insert(index, chars, tags)
  File "C:\Python33\lib\idlelib\WidgetRedirector.py", line 104, in __call__
    return self.tk_call(self.orig_and_operation + args)
_tkinter.TclError: character U+1d518 is above the range (U+0000-U+FFFF) allowed by Tcl