Fixing below error :
Traceback (most recent call last):
File "./tkinter_PanedWindow_bughunting.py", line 6, in module
m1.pack(fill=Both, expand=1)
NameError: name 'Both' is not defined
Traceback (most recent call last):
File "./tkinter_PanedWindow_bughunting.py", line 9, in module
left = Label(m1 , test = "left")
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 2595, in _init_
Widget.__init__(self, master, 'label', cnf, kw)
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 2094, in _init_
(widgetName, self._w) + extra + self._options(cnf))
_tkinter.TclError: unknown option "-test"