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proto.bch.cashaddr: Python 3.9 compatibility fixes

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The MMGen Project 2024-12-30 11:31:40 +00:00
commit cab7345799
Signed by: mmgen
GPG key ID: 3F8B1861E32B7DA2
1 changed files with 3 additions and 3 deletions
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6
mmgen/proto/bch/cashaddr.py
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@ -73,7 +73,7 @@ def cashaddr_encode_addr(addr_type, size, pfx, data):
t = namedtuple('encoded_cashaddr', ['addr', 'pfx', 'payload'])
payload_bin = (
'{:08b}'.format(make_ver_byte(addr_type, size * 8)) +
'{:0{w}b}'.format(int.from_bytes(data), w=len(data) * 8)
'{:0{w}b}'.format(int.from_bytes(data, 'big'), w=len(data) * 8)
)
payload_vec = bin2vec(payload_bin + '0' * (-len(payload_bin) % 5))
chksum_vec = bin2vec('{:040b}'.format(PolyMod(make_polymod_vec(pfx, payload_vec + [0] * 8))))
@ -86,8 +86,8 @@ def cashaddr_decode_addr(addr):
data_bin = ''.join(f'{b32a.index(c):05b}' for c in a.payload)
vi = parse_ver_byte(int(data_bin[:8], 2))
assert len(data_bin) >= vi.bitlen + 48, 'cashaddr data length too short!'
data = int(data_bin[8:8+vi.bitlen], 2).to_bytes(vi.bitlen // 8)
chksum = int(data_bin[-40:], 2).to_bytes(5)
data = int(data_bin[8:8+vi.bitlen], 2).to_bytes(vi.bitlen // 8, 'big')
chksum = int(data_bin[-40:], 2).to_bytes(5, 'big')
pad_bin = data_bin[8+vi.bitlen:-40]
assert not pad_bin or pad_bin in '0000', f'{pad_bin}: invalid cashaddr data'
if chksum_chk := PolyMod(make_polymod_vec(a.pfx, [b32a.index(c) for c in a.payload])) != 0: