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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 setPadMode(self, mode):
 		"""Sets the type of padding mode, pyDes.PAD_NORMAL or pyDes.PAD_PKCS5"""

		_baseDes.setPadMode(self, mode)
		for key in (self.__key1, self.__key2, self.__key3):
			key.setPadMode(mode)