####################################################################################################
THIS STACK TRACE IS FROM MY ORIGINAL APPLICATION RUNNING WITH THE SAME APPROACH OF THREADS
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DEBUG : - THREAD IS STILL ALIVE
Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\Lib\lib-tk\Tkinter.py", line 1410, in __call__
    return self.func(*args)
  File "C:\Python27\Lib\lib-tk\Tkinter.py", line 2798, in set
Exception in thread Thread-2:
Traceback (most recent call last):
  File "C:\Python27\Lib\threading.py", line 551, in __bootstrap_inner
    self.run()
  File "C:\Python27\Lib\threading.py", line 504, in run
    self.__target(*self.__args, **self.__kwargs)
  File "ui.pyw", line 38, in AppHandler
    widinst.see('end')
  File "C:\Python27\Lib\lib-tk\Tkinter.py", line 3037, in see
    self.tk.call(self._w, 'see', index)
TclError: bad text index ""

    self.tk.call((self._w, 'set') + args)
SystemError: Negative size passed to PyString_FromStringAndSize

####################################################################################################
THIS STACK TRACE IS FROM THE TEST CODE ATTACHED
####################################################################################################

Exception in thread Thread-2:
Traceback (most recent call last):
  File "C:\Python27\Lib\threading.py", line 551, in __bootstrap_inner
    self.run()
  File "C:\Python27\Lib\threading.py", line 504, in run
    self.__target(*self.__args, **self.__kwargs)
  File "D:\sarbjit\py\projects\hier_copy_v2 - Copy\thread_test.py", line 24, in QueueHandler
    widinst.configure(state="normal")
  File "C:\Python27\Lib\lib-tk\Tkinter.py", line 1202, in configure
    return self._configure('configure', cnf, kw)
  File "C:\Python27\Lib\lib-tk\Tkinter.py", line 1193, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
TclError: invalid command name "1.0"


####################################################################################################
THIS STACK TRACE IS FROM THE TEST CODE ATTACHED
####################################################################################################

Exception in thread Thread-2:
Traceback (most recent call last):
  File "C:\Python27\Lib\threading.py", line 551, in __bootstrap_inner
    self.run()
  File "C:\Python27\Lib\threading.py", line 504, in run
    self.__target(*self.__args, **self.__kwargs)
  File "D:\sarbjit\py\projects\hier_copy_v2 - Copy\thread_test.py", line 28, in QueueHandler
    widinst.delete('1.0', '2.0')
  File "C:\Python27\Lib\lib-tk\Tkinter.py", line 2853, in delete
    self.tk.call(self._w, 'delete', index1, index2)
TclError: bad option "2.0": must be bbox, cget, compare, configure, count, debug, delete, dlineinfo, dump, edit, get, image, index, insert, mark, peer, replace, scan, search, see, tag, window, xview, or yview