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named tuples

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Jack Robison 2021-02-19 13:15:48 -05:00 committed by Victor Shyba
parent bcd2c7d90b
commit 3e826d0a5d
2 changed files with 17 additions and 6 deletions
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21
lbry/wallet/server/tx.py
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@ -26,7 +26,7 @@
# and warranty status of this software. # and warranty status of this software.
"""Transaction-related classes and functions.""" """Transaction-related classes and functions."""
import typing
from collections import namedtuple from collections import namedtuple
from lbry.wallet.server.hash import sha256, double_sha256, hash_to_hex_str from lbry.wallet.server.hash import sha256, double_sha256, hash_to_hex_str
@ -41,11 +41,20 @@ ZERO = bytes(32)
MINUS_1 = 4294967295 MINUS_1 = 4294967295
class Tx(namedtuple("Tx", "version inputs outputs locktime raw")): class Tx(typing.NamedTuple):
"""Class representing a transaction.""" version: int
inputs: typing.List['TxInput']
outputs: typing.List['TxOutput']
locktime: int
raw: bytes
class TxInput(namedtuple("TxInput", "prev_hash prev_idx script sequence")): class TxInput(typing.NamedTuple):
prev_hash: bytes
prev_idx: int
script: bytes
sequence: int
"""Class representing a transaction input.""" """Class representing a transaction input."""
def __str__(self): def __str__(self):
script = self.script.hex() script = self.script.hex()
@ -65,7 +74,9 @@ class TxInput(namedtuple("TxInput", "prev_hash prev_idx script sequence")):
)) ))
class TxOutput(namedtuple("TxOutput", "value pk_script")): class TxOutput(typing.NamedTuple):
value: int
pk_script: bytes
def serialize(self): def serialize(self):
return b''.join(( return b''.join((

2
lbry/wallet/server/util.py
View file

@ -340,7 +340,7 @@ pack_le_int64 = struct_le_q.pack
pack_le_uint16 = struct_le_H.pack pack_le_uint16 = struct_le_H.pack
pack_le_uint32 = struct_le_I.pack pack_le_uint32 = struct_le_I.pack
pack_be_uint64 = lambda x: x.to_bytes(8, byteorder='big') pack_be_uint64 = lambda x: x.to_bytes(8, byteorder='big')
pack_be_uint16 = struct_be_H.pack pack_be_uint16 = lambda x: x.to_bytes(2, byteorder='big')
pack_be_uint32 = struct_be_I.pack pack_be_uint32 = struct_be_I.pack
pack_byte = structB.pack pack_byte = structB.pack