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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def on_entry_click(self, event):
 		""" 		function that gets called whenever entry is clicked 		"""

		if event.widget.config('fg') [4] == 'grey':
		   event.widget.delete(0, "end" ) # delete all the text in the entry
		   event.widget.insert(0, '') #Insert blank for user input
		   event.widget.config(fg = 'black')