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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 pop(self, key, default = None):
 		"""Delete the item"""

		node = self.get(key, None)
		
		if node == None:
			value = default
		else:
			value = node
		try:
			del self[key]
		except:
			return value
		return value