def send(from_addr, to_addr, amount):
bc = Blockchain()
utxo_set = UTXOSet(bc)
tx = UTXOTx(from_addr, to_addr, amount, utxo_set)
inputs = []
outputs = []
for vin in tx.vin:
ctxin = TXInput()
ctxin._tx_id = vin.tx_id
ctxin._vin = vin.vout
ctxin._sig = vin.signature
ctxin._public_key = vin.public_key
inputs.append(ctxin)
for vout in tx.vout:
outputs.append(TXOutput(vout.value, vout.address))
txnew = Transaction()
txnew._id = tx.ID
txnew._vin = inputs
txnew._vout = outputs
return txnew
def _trimmed_copy(self):
inputs = []
outputs = []
for vin in self.vin:
ctxin = TXInput()
ctxin._tx_id = vin.tx_id
ctxin._vin = vin.vout
ctxin._sig = None
ctxin._public_key = None
inputs.append(ctxin)
for vout in self.vout:
outputs.append(TXOutput(vout.value, vout.address))
txnew = Transaction()
txnew._id = self.ID
txnew._vin = inputs
txnew._vout = outputs
return txnew