def from_trytes(cls, trytes, *args, **kwargs):
# type: (Type[T], Iterable[Iterable[int]], *Any, **Any) -> T
"""
Creates a TryteString from a sequence of trytes.
:param trytes:
Iterable of tryte values.
In this context, a tryte is defined as a list containing 3
trits.
:param args:
Additional positional arguments to pass to the initializer.
:param kwargs:
Additional keyword arguments to pass to the initializer.
References:
- :py:meth:`as_trytes`
"""
chars = bytearray()
for t in trytes:
converted = int_from_trits(t)
# :py:meth:`_tryte_from_int`
if converted < 0:
converted += 27
chars.append(AsciiTrytesCodec.alphabet[converted])
return cls(chars, *args, **kwargs)
def from_trytes(cls, trytes, *args, **kwargs):
# type: (Iterable[Iterable[int]], *Any, **Any) -> TryteString
"""
Creates a TryteString from a sequence of trytes.
:param trytes:
Iterable of tryte values.
In this context, a tryte is defined as a list containing 3 trits.
:param args:
Additional positional arguments to pass to the initializer.
:param kwargs:
Additional keyword arguments to pass to the initializer.
References:
- :py:meth:`as_trytes`
"""
chars = bytearray()
for t in trytes:
converted = int_from_trits(t)
# :py:meth:`_tryte_from_int`
if converted < 0:
converted += 27
chars.append(AsciiTrytesCodec.alphabet[converted])
return cls(chars, *args, **kwargs)
def from_trytes(cls: Type[T],
trytes: Iterable[Iterable[int]],
*args: Any,
**kwargs: Any) -> T:
"""
Creates a TryteString from a sequence of trytes.
:param Iterable[Iterable[int]] trytes:
Iterable of tryte values.
In this context, a tryte is defined as a list containing 3
trits.
:param args:
Additional positional arguments to pass to the initializer.
:param kwargs:
Additional keyword arguments to pass to the initializer.
:return:
:py:class:`TryteString` object.
Example usage::
from iota import TryteString
message_trytes = TryteString.from_trytes(
[
[1, 0, -1],
[-1, 1, 0],
[1, -1, 0],
[-1, 1, 0],
[0, 1, 0],
[0, 1, 0],
[-1, 1, 1],
[-1, 1, 0],
]
)
References:
- :py:meth:`as_trytes`
"""
chars = bytearray()
for t in trytes:
converted = int_from_trits(t)
# :py:meth:`_tryte_from_int`
if converted < 0:
converted += 27
chars.append(AsciiTrytesCodec.alphabet[converted])
return cls(chars, *args, **kwargs)
def find_milestone(hash_txn):
print(datetime.datetime.now().strftime("%m-%d %H:%M") +
" Child transaction: " + hash_txn)
data = {'command': 'getTrytes', 'hashes': [hash_txn]}
headers = {'Content-type': 'application/json', 'X-IOTA-API-Version': '1'}
r = requests.post(NODE_URL, data=json.dumps(data), headers=headers)
if r.status_code == requests.codes.ok:
if COORDINATOR_ADDR[:80] in r.text:
tag_milestone = get_txn_tag(hash_txn)
index_milestone = int_from_trits(
TryteString(tag_milestone).as_trits())
return index_milestone
return 0
def from_tryte_string(cls, trytes, hash_=None):
# type: (TrytesCompatible, Optional[TransactionHash]) -> Transaction
"""
Creates a Transaction object from a sequence of trytes.
:param trytes:
Raw trytes. Should be exactly 2673 trytes long.
:param hash_:
The transaction hash, if available.
If not provided, it will be computed from the transaction
trytes.
"""
tryte_string = TransactionTrytes(trytes)
if not hash_:
hash_trits = [0] * HASH_LENGTH # type: MutableSequence[int]
sponge = Curl()
sponge.absorb(tryte_string.as_trits())
sponge.squeeze(hash_trits)
hash_ = TransactionHash.from_trits(hash_trits)
return cls(
hash_=hash_,
signature_message_fragment=Fragment(tryte_string[0:2187]),
address=Address(tryte_string[2187:2268]),
value=int_from_trits(tryte_string[2268:2295].as_trits()),
legacy_tag=Tag(tryte_string[2295:2322]),
timestamp=int_from_trits(tryte_string[2322:2331].as_trits()),
current_index=int_from_trits(tryte_string[2331:2340].as_trits()),
last_index=int_from_trits(tryte_string[2340:2349].as_trits()),
bundle_hash=BundleHash(tryte_string[2349:2430]),
trunk_transaction_hash=TransactionHash(tryte_string[2430:2511]),
branch_transaction_hash=TransactionHash(tryte_string[2511:2592]),
tag=Tag(tryte_string[2592:2619]),
attachment_timestamp=int_from_trits(
tryte_string[2619:2628].as_trits()),
attachment_timestamp_lower_bound=int_from_trits(
tryte_string[2628:2637].as_trits()),
attachment_timestamp_upper_bound=int_from_trits(
tryte_string[2637:2646].as_trits()),
nonce=Nonce(tryte_string[2646:2673]),
)
def from_tryte_string(cls, trytes, hash_=None):
# type: (TrytesCompatible, Optional[TransactionHash]) -> Transaction
"""
Creates a Transaction object from a sequence of trytes.
:param trytes:
Raw trytes. Should be exactly 2673 trytes long.
:param hash_:
The transaction hash, if available.
If not provided, it will be computed from the transaction trytes.
"""
tryte_string = TransactionTrytes(trytes)
if not hash_:
hash_trits = [0] * HASH_LENGTH # type: MutableSequence[int]
sponge = Curl()
sponge.absorb(tryte_string.as_trits())
sponge.squeeze(hash_trits)
hash_ = TransactionHash.from_trits(hash_trits)
return cls(
hash_ = hash_,
signature_message_fragment = Fragment(tryte_string[0:2187]),
address = Address(tryte_string[2187:2268]),
value = int_from_trits(tryte_string[2268:2295].as_trits()),
legacy_tag = Tag(tryte_string[2295:2322]),
timestamp = int_from_trits(tryte_string[2322:2331].as_trits()),
current_index = int_from_trits(tryte_string[2331:2340].as_trits()),
last_index = int_from_trits(tryte_string[2340:2349].as_trits()),
bundle_hash = BundleHash(tryte_string[2349:2430]),
trunk_transaction_hash = TransactionHash(tryte_string[2430:2511]),
branch_transaction_hash = TransactionHash(tryte_string[2511:2592]),
tag = Tag(tryte_string[2592:2619]),
attachment_timestamp = int_from_trits(tryte_string[2619:2628].as_trits()),
attachment_timestamp_lower_bound = int_from_trits(tryte_string[2628:2637].as_trits()),
attachment_timestamp_upper_bound = int_from_trits(tryte_string[2637:2646].as_trits()),
nonce = Nonce(tryte_string[2646:2673]),
)
def from_tryte_string(cls: Type[T],
trytes: TrytesCompatible,
hash_: Optional[TransactionHash] = None) -> T:
"""
Creates a Transaction object from a sequence of trytes.
:param TrytesCompatible trytes:
Raw trytes. Should be exactly 2673 trytes long.
:param Optional[TransactionHash] hash_:
The transaction hash, if available.
If not provided, it will be computed from the transaction
trytes.
:return:
:py:class:`Transaction` object.
Example usage::
from iota import Transaction
txn =\\
Transaction.from_tryte_string(
b'GYPRVHBEZOOFXSHQBLCYW9ICTCISLHDBNMMVYD9JJHQMPQCTIQAQTJNNNJ9IDXLRCC'
b'OYOXYPCLR9PBEY9ORZIEPPDNTI9CQWYZUOTAVBXPSBOFEQAPFLWXSWUIUSJMSJIIIZ'
b'WIKIRH9GCOEVZFKNXEVCUCIIWZQCQEUVRZOCMEL9AMGXJNMLJCIA9UWGRPPHCEOPTS'
b'VPKPPPCMQXYBHMSODTWUOABPKWFFFQJHCBVYXLHEWPD9YUDFTGNCYAKQKVEZYRBQRB'
b'XIAUX9SVEDUKGMTWQIYXRGSWYRK9SRONVGTW9YGHSZRIXWGPCCUCDRMAXBPDFVHSRY'
b'WHGB9DQSQFQKSNICGPIPTRZINYRXQAFSWSEWIFRMSBMGTNYPRWFSOIIWWT9IDSELM9'
b'JUOOWFNCCSHUSMGNROBFJX9JQ9XT9PKEGQYQAWAFPRVRRVQPUQBHLSNTEFCDKBWRCD'
b'X9EYOBB9KPMTLNNQLADBDLZPRVBCKVCYQEOLARJYAGTBFR9QLPKZBOYWZQOVKCVYRG'
b'YI9ZEFIQRKYXLJBZJDBJDJVQZCGYQMROVHNDBLGNLQODPUXFNTADDVYNZJUVPGB9LV'
b'PJIYLAPBOEHPMRWUIAJXVQOEM9ROEYUOTNLXVVQEYRQWDTQGDLEYFIYNDPRAIXOZEB'
b'CS9P99AZTQQLKEILEVXMSHBIDHLXKUOMMNFKPYHONKEYDCHMUNTTNRYVMMEYHPGASP'
b'ZXASKRUPWQSHDMU9VPS99ZZ9SJJYFUJFFMFORBYDILBXCAVJDPDFHTTTIYOVGLRDYR'
b'TKHXJORJVYRPTDH9ZCPZ9ZADXZFRSFPIQKWLBRNTWJHXTOAUOL9FVGTUMMPYGYICJD'
b'XMOESEVDJWLMCVTJLPIEKBE9JTHDQWV9MRMEWFLPWGJFLUXI9BXPSVWCMUWLZSEWHB'
b'DZKXOLYNOZAPOYLQVZAQMOHGTTQEUAOVKVRRGAHNGPUEKHFVPVCOYSJAWHZU9DRROH'
b'BETBAFTATVAUGOEGCAYUXACLSSHHVYDHMDGJP9AUCLWLNTFEVGQGHQXSKEMVOVSKQE'
b'EWHWZUDTYOBGCURRZSJZLFVQQAAYQO9TRLFFN9HTDQXBSPPJYXMNGLLBHOMNVXNOWE'
b'IDMJVCLLDFHBDONQJCJVLBLCSMDOUQCKKCQJMGTSTHBXPXAMLMSXRIPUBMBAWBFNLH'
b'LUJTRJLDERLZFUBUSMF999XNHLEEXEENQJNOFFPNPQ9PQICHSATPLZVMVIWLRTKYPI'
b'XNFGYWOJSQDAXGFHKZPFLPXQEHCYEAGTIWIJEZTAVLNUMAFWGGLXMBNUQTOFCNLJTC'
b'DMWVVZGVBSEBCPFSM99FLOIDTCLUGPSEDLOKZUAEVBLWNMODGZBWOVQT9DPFOTSKRA'
b'BQAVOQ9RXWBMAKFYNDCZOJGTCIDMQSQQSODKDXTPFLNOKSIZEOY9HFUTLQRXQMEPGO'
b'XQGLLPNSXAUCYPGZMNWMQWSWCKAQYKXJTWINSGPPZG9HLDLEAWUWEVCTVRCBDFOXKU'
b'ROXH9HXXAXVPEJFRSLOGRVGYZASTEBAQNXJJROCYRTDPYFUIQJVDHAKEG9YACV9HCP'
b'JUEUKOYFNWDXCCJBIFQKYOXGRDHVTHEQUMHO999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999999999999999999999999999999999999'
b'999999999999RKWEEVD99A99999999A99999999NFDPEEZCWVYLKZGSLCQNOFUSENI'
b'XRHWWTZFBXMPSQHEDFWZULBZFEOMNLRNIDQKDNNIELAOXOVMYEI9PGTKORV9IKTJZQ'
b'UBQAWTKBKZ9NEZHBFIMCLV9TTNJNQZUIJDFPTTCTKBJRHAITVSKUCUEMD9M9SQJ999'
b'999TKORV9IKTJZQUBQAWTKBKZ9NEZHBFIMCLV9TTNJNQZUIJDFPTTCTKBJRHAITVSK'
b'UCUEMD9M9SQJ999999999999999999999999999999999999999999999999999999'
b'999999999999999999999999999999999'
)
"""
tryte_string = TransactionTrytes(trytes)
if not hash_:
hash_trits: MutableSequence[int] = [0] * HASH_LENGTH
sponge = Curl()
sponge.absorb(tryte_string.as_trits())
sponge.squeeze(hash_trits)
hash_ = TransactionHash.from_trits(hash_trits)
return cls(
hash_=hash_,
signature_message_fragment=Fragment(tryte_string[0:2187]),
address=Address(tryte_string[2187:2268]),
value=int_from_trits(tryte_string[2268:2295].as_trits()),
legacy_tag=Tag(tryte_string[2295:2322]),
timestamp=int_from_trits(tryte_string[2322:2331].as_trits()),
current_index=int_from_trits(tryte_string[2331:2340].as_trits()),
last_index=int_from_trits(tryte_string[2340:2349].as_trits()),
bundle_hash=BundleHash(tryte_string[2349:2430]),
trunk_transaction_hash=TransactionHash(tryte_string[2430:2511]),
branch_transaction_hash=TransactionHash(tryte_string[2511:2592]),
tag=Tag(tryte_string[2592:2619]),
attachment_timestamp=int_from_trits(
tryte_string[2619:2628].as_trits()),
attachment_timestamp_lower_bound=int_from_trits(
tryte_string[2628:2637].as_trits()),
attachment_timestamp_upper_bound=int_from_trits(
tryte_string[2637:2646].as_trits()),
nonce=Nonce(tryte_string[2646:2673]),
)
def new_seed(old_seed_trytes, used_addresses_int):
old_seed_int = int_from_trits(TryteString(old_seed_trytes).as_trits())
old_seed_int += used_addresses_int
return TryteString.from_trits(trits_from_int(old_seed_int))