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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 encrypt(self, key_password):
 """ Encrypts the private key, so that it can be saved to a keystore. This will make it necessary to decrypt it again if it is going to be used later. Has no effect if the entry is already encrypted. :param str key_password: The password to encrypt the entry with. """

        if not self.is_decrypted():
            return

        encrypted_private_key = sun_crypto.jks_pkey_encrypt(self.pkey_pkcs8, key_password)

        a = AlgorithmIdentifier()
        a.setComponentByName('algorithm', sun_crypto.SUN_JKS_ALGO_ID)
        a.setComponentByName('parameters', '\x05\x00')
        epki = rfc5208.EncryptedPrivateKeyInfo()
        epki.setComponentByName('encryptionAlgorithm',a)
        epki.setComponentByName('encryptedData', encrypted_private_key)

        self._encrypted = encoder.encode(epki)
        self._pkey = None
        self._pkey_pkcs8 = None
        self._algorithm_oid = None