def create_block(self):
# trans = []
# temp = []
# for i in range(len(self.transactions)):
# a = self.transactions[i]
# transaction = Transaction(self.nodes[a[1]], self.nodes[a[2]], a[3], a[4])
# transaction.signTransaction()
# temp.append(transaction)
# temp.sort(key = lambda x: x.creation_time)
# for i in range(self.block_size):
# a = temp.pop(0)
# trans.append(a)
trans = []
self.transactions.sort(key=lambda x: x[4])
for i in range(self.block_size):
a = self.transactions.pop(0)
transaction = Transaction(self.nodes[a[1]], self.nodes[a[2]], a[3],
a[4])
transaction.signTransaction()
trans.append(transaction)
block1 = block(time.time(), trans, "")
currHash = self.bitcoin.current_hash()
block1.set_prev_hash(currHash)
block1.mineBlock(3)
self.block_lock.acquire()
if (self.block_messages == []):
self.block_lock.release()
self.bitcoin.addNewBlock(block1)
for i in range(len(self.nodes)):
if (i != self.walletId):
nodes[i].block_lock.acquire()
nodes[i].block_messages.append(block1)
nodes[i].block_lock.release()
else:
for i in range(len(self.block_messages)):
self.bitcoin.addNewBlock(self.block_messages[i])
self.block_lock.release()
# Your private key goes here
priv_key = keys.gen_private_key(curve.secp256k1)
# From that we can calculate your public key(which doubles as your wallet address)
pub_key = keys.get_public_key(priv_key, curve.secp256k1)
myWalletAddress = hex(int(str(pub_key.x) + str(pub_key.y)))
# Create new instance of Blockchain class
print('Initialize coin')
rebelCoin = Blockchain()
# Create a transaction & sign it with your key
print('1st trans')
tx1 = Transaction(myWalletAddress, '123456789', 100)
tx1.signTransaction(priv_key)
# These try/except blocks are neccessary for now due to a bug i have where
# there's either an ecdsa error or a key error, but reruning fixes it
try:
try:
rebelCoin.addTransaction(tx1)
except ecdsa.EcdsaError:
rebelCoin.addTransaction(tx1)
except:
rebelCoin.addTransaction(tx1)
print()
# Mine block
rebelCoin.minePendingTransactions(myWalletAddress)
# Create second transaction