Redeem time-locked BTC transaction

redeemBTCtimeLock.py

from bitcoinutils.setup import setup
from bitcoinutils.utils import to_satoshis
from bitcoinutils.transactions import Transaction, TxInput, TxOutput
from bitcoinutils.keys import PrivateKey, P2wshAddress, P2wpkhAddress
from bitcoinutils.script import Script


def main():
    # always remember to setup the network
    setup('testnet')

    lockPriv = PrivateKey("TODO")
    lockPub = lockPriv.get_public_key()

    # TODO: set values
    txid = 'TODO'
    vout = 0
    amount = 0.00001725
    fee = 0.00000140
    locktime = '10edba65'

    # lock Script:
    lock_redeem_script = Script(
        [ locktime,
          'OP_CHECKLOCKTIMEVERIFY',
          'OP_DROP',
          lockPub.to_hex(),
          'OP_CHECKSIG',
        ]
    )

    fromAddress = P2wshAddress.from_script(lock_redeem_script)
    print(fromAddress.to_string())

    toAddress = P2wpkhAddress.from_address(
        "TODO")

    # create transaction input from tx id of UTXO
    txin = TxInput(txid, vout)

    txOut1 = TxOutput(to_satoshis(amount - fee), toAddress.to_script_pub_key())

    tx = Transaction([txin], [txOut1], has_segwit=True)

    # Normal unlock:
    sig1 = lockPriv.sign_segwit_input(tx, 0, lock_redeem_script, to_satoshis(amount))
    tx.witnesses.append(Script([
        sig1,
        lock_redeem_script.to_hex()]))

    print(tx.inputs)

    # print raw signed transaction ready to be broadcasted
    print("\nRaw signed transaction:\n" + tx.serialize())
    print("\nTxId:", tx.get_txid())


if __name__ == "__main__":
    main()