Message 211071 - Python tracker

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Content 
During experiments I got following message on terminal:

Exception in Tkinter callback
Traceback (most recent call last):
  File "/home/serhiy/py/cpython/Lib/tkinter/__init__.py", line 1482, in __call__
    return self.func(*args)
  File "/home/serhiy/py/cpython/Lib/tkinter/__init__.py", line 534, in callit
    func(*args)
  File "/home/serhiy/py/cpython/Lib/idlelib/ToolTip.py", line 44, in showtip
    x = self.button.winfo_rootx() + 20
  File "/home/serhiy/py/cpython/Lib/tkinter/__init__.py", line 845, in winfo_rootx
    self.tk.call('winfo', 'rootx', self._w))
_tkinter.TclError: bad window path name ".3066068076.3066068332.text.3048812460"

May be it is unrelated.