Merge pull request #344 from NashMiao/master

 fix deploy bug

ontology/core/transaction.py

@@ -85,7 +85,7 @@ def __iter__(self):
         data['gasPrice'] = self.gas_price
         data['gasLimit'] = self.gas_limit
         data['payer'] = Address(self.payer).b58encode()
-        data['payload'] = bytes.hex(self.payload)
+        data['payload'] = bytearray.hex(self.payload)
         data['attributes'] = bytearray.hex(self.attributes)
         data['sigs'] = list()
         for sig in self.sig_list:
@@ -103,7 +103,7 @@ def serialize_unsigned(self, is_str: bool = False) -> bytes or str:
         writer.write_uint64(self.gas_limit)
         writer.write_bytes(self.payer)
         self.serialize_exclusive_data(writer)
-        if self.payload is not None:
+        if self.payload is not None and len(self.payload) != 0:
             writer.write_var_bytes(bytes(self.payload))
         writer.write_var_int(len(self.attributes))
         ms.flush()

tests/test_hd_wallet.py

@@ -38,7 +38,7 @@ def setUp(self):
                              'tomorrow stable casual write adult bean wisdom give duty sound blanket vanish grab junior crystal duck advice print tail purse orient',
                              'modify moon weird cloud crane grace cheap useless canoe fashion also cement zebra amount pink ocean saddle art fun jewel smooth upon abandon network']
         self.master_keys = list()
-        for i, m in enumerate(self.mnemonic_lst):
+        for _, m in enumerate(self.mnemonic_lst):
             self.master_keys.append(HDPrivateKey.master_key_from_mnemonic(m))
         self.hex_master_keys = ['99c7b4ef1a126c4efd84decaa918c45d90f87f8eaba0d32bb113a7f3e4118162',
                                 '652c39c190b87677211729c3cb73e9bb18867cd26145fb8a6088bd1c9b10b566',