async def utxo_get_address(self, tx_hash, index):
'''Returns the address sent to in a UTXO, or null if the UTXO
cannot be found.
tx_hash: the transaction hash of the UTXO
index: the index of the UTXO in the transaction'''
# Used only for electrum client command-line requests. We no
# longer index by address, so need to request the raw
# transaction. So it works for any TXO not just UTXOs.
self.assert_tx_hash(tx_hash)
index = self.non_negative_integer(index)
raw_tx = await self.daemon_request('getrawtransaction', tx_hash)
if not raw_tx:
return None
raw_tx = util.hex_to_bytes(raw_tx)
tx, tx_hash = self.coin.DESERIALIZER(raw_tx).read_tx()
if index >= len(tx.outputs):
return None
return self.coin.address_from_script(tx.outputs[index].pk_script)
async def raw_blocks(self, hex_hashes):
'''Return the raw binary blocks with the given hex hashes.'''
params_iterable = ((h, False) for h in hex_hashes)
blocks = await self._send_vector('getblock', params_iterable)
# Convert hex string to bytes
return [hex_to_bytes(block) for block in blocks]
def test_hex_transforms():
h = "AABBCCDDEEFF"
assert util.hex_to_bytes(h) == b'\xaa\xbb\xcc\xdd\xee\xff'
def hex_str_to_hash(x):
'''Convert a displayed hex string to a binary hash.'''
return bytes(reversed(hex_to_bytes(x)))
def from_string(cls, string):
'''Create from a hex string.'''
return cls.from_bytes(hex_to_bytes(string))
