def getutxos(self, addresslist, utxos_per_address=2):
"""
Dummy method to retreive UTXO's. This method creates a new UTXO for each address provided out of the
testnet void, which can be used to create test transactions for the bitcoinlib testnet.
:param addresslist: List of addresses
:type addresslist: list
:param utxos_per_address: Number of UTXO's to be created per address
:type utxos_per_address: int
:return list: The created UTXO set
"""
utxos = []
for n in range(utxos_per_address):
for address in addresslist:
pkh = str(n).encode() + addr_to_pubkeyhash(address)[1:]
utxos.append(
{
'address': address,
'tx_hash': hashlib.sha256(pkh).hexdigest(),
'confirmations': 10,
'output_n': 0,
'index': 0,
'value': 1 * self.units,
'script': '',
}
)
return utxos
def getutxos(self, address, after_txid='', max_txs=10, utxos_per_address=2):
"""
Dummy method to retreive UTXO's. This method creates a new UTXO for each address provided out of the
testnet void, which can be used to create test transactions for the bitcoinlib testnet.
:param address: Address string
:type address: str
:param after_txid: Transaction ID of last known transaction. Only check for utxos after given tx id. Default: Leave empty to return all utxos. If used only provide a single address
:type after_txid: str
:param max_txs: Maximum number of utxo's to return
:type max_txs: int
:return list: The created UTXO set
"""
utxos = []
for n in range(utxos_per_address):
try:
pkh = str(n).encode() + addr_to_pubkeyhash(address)[1:]
except:
pkh = str(n).encode() + addr_bech32_to_pubkeyhash(address)[1:]
utxos.append(
{
'address': address,
'tx_hash': hashlib.sha256(pkh).hexdigest(),
'confirmations': 10,
'output_n': 0,
'index': 0,
'value': 1 * self.units,
'script': '',
}
)
return utxos
def getutxos(self, addresslist, utxos_per_address=2):
utxos = []
for n in range(utxos_per_address):
for address in addresslist:
pkh = str(n).encode() + addr_to_pubkeyhash(address)[1:]
utxos.append({
'address': address,
'tx_hash': hashlib.sha256(pkh).hexdigest(),
'confirmations': 10,
'output_n': 0,
'index': 0,
'value': 1 * self.units,
'script': '',
})
return utxos
def getutxos(self, addresslist):
utxos = []
for address in addresslist:
utxos.append({
'address':
address,
'tx_hash':
hashlib.sha256(
addr_to_pubkeyhash(
'21DBmFUMQMP7A6KeENXgZQ4wJdSCeGc2zFo')).hexdigest(),
'confirmations':
10,
'output_n':
0,
'index':
0,
'value':
1 * self.units,
'script':
'',
})
return utxos
def _get_tx_hash(self, address, n):
try:
pkh = str(n).encode() + addr_to_pubkeyhash(address)[1:]
except Exception:
pkh = str(n).encode() + addr_bech32_to_pubkeyhash(address)[1:]
return hashlib.sha256(pkh).hexdigest()
def test_address_to_pkh_bech32(self):
addr = 'bc1qy8qmc6262m68ny0ftlexs4h9paud8sgce3sf84'
self.assertEqual(addr_to_pubkeyhash(addr), b'!\xc1\xbciZV\xf4y\x91\xe9_\xf2hV\xe5\x0fx\xd3\xc1\x18')
self.assertEqual(addr_to_pubkeyhash(addr, as_hex=True), '21c1bc695a56f47991e95ff26856e50f78d3c118')
def test_address_to_pkh_conversion_3(self):
self.assertEqual(b'\xFF' * 20,
addr_to_pubkeyhash('1QLbz7JHiBTspS962RLKV8GndWFwi5j6Qr', False))
def test_address_to_pkh_conversion_2(self):
self.assertEqual('00' * 20,
addr_to_pubkeyhash('1111111111111111111114oLvT2', True))
def test_address_to_pkh_conversion_1(self):
self.assertEqual('13d215d212cd5188ae02c5635faabdc4d7d4ec91',
addr_to_pubkeyhash('12ooWd8Xag7hsgP9PBPnmyGe36VeUrpMSH', True))
]
print("\n=== Change base: convert from base N to base M ===")
for example in examples:
print("\n>>> change_base%s # Change from base%d to base%d" %
(example, example[1], example[2]))
print("%s" % change_base(*example))
#
# Address and Script conversion examples
#
print("\n=== Conversion of Bitcoin Addresses to Public Key Hashes ===")
addrs = ['12ooWd8Xag7hsgP9PBPnmyGe36VeUrpMSH', '1111111111111111111114oLvT2',
'1QLbz7JHiBTspS962RLKV8GndWFwi5j6Qr']
for addr in addrs:
print("Public Key Hash of address '%s' is '%s'" % (addr, addr_to_pubkeyhash(addr, True)))
print("\n=== From Public Key Hashes to address ===")
print(pubkeyhash_to_addr('13d215d212cd5188ae02c5635faabdc4d7d4ec91'))
print(pubkeyhash_to_addr('00' * 20))
print("\n=== Create PKH from redeemscript ===")
redeemscript = '5221023dd6aeaa2acb92cbea35820361e5fd07af10f4b01c985adec30848b424756a6c210381cd2bb2a38d939fa677a5dcc' \
'981ee0630b32b956b2e6dc3e1c028e6d09db5a72103d2c6d31cabe4025c25879010465f501194b352823c553660d303adfa' \
'9a26ad3c53ae'
print(to_hexstring(hash160(to_bytes(redeemscript))))
#
# Other type conversions and normalizations
#
