Bsvlib - Bitcoin SV (BSV) Python Library

Related tags

Cryptography bsvlib
Overview

bsvlib

Python package PyPI version Python versions MIT license

A Bitcoin SV (BSV) Python Library that is extremely simple to use but more.

  • MAINNET and TESTNET supported
  • P2PKH and P2PK supported
  • All the SIGHASH flags supported
  • Additional script types can be customized
  • Ability to adapt to different service providers

Installation

$ pip install bsvlib

Examples

  1. Send BSV in one line.
from bsvlib import Wallet

# Donate to aaron67!
print(Wallet(['YOUR_WIF_GOES_HERE']).send_transaction(outputs=[('1HYeFCE2KG4CW4Jwz5NmDqAZK9Q626ChmN', 724996)]))
  1. Good to send unspent locked by different keys in one transaction, and OP_RETURN output is supported as well
from bsvlib import Wallet
from bsvlib.constants import Chain

w = Wallet(chain=Chain.TEST)

w.add_key('cVwfreZB3i8iv9JpdSStd9PWhZZGGJCFLS4rEKWfbkahibwhticA')
w.add_key('93UnxexmsTYCmDJdctz4zacuwxQd5prDmH6rfpEyKkQViAVA3me')
print(w.get_balance(refresh=True))

outputs = [('mqBuyzdHfD87VfgxaYeM9pex3sJn4ihYHY', 724), ('mr1FHq6GwWzmD1y8Jxq6rNDGsiiQ9caF7r', 996)]
pushdatas = ['hello', b'world']
print(w.send_transaction(outputs=outputs, pushdatas=pushdatas, combine=True))
  1. Operate P2PK
from bsvlib import Wallet, TxOutput, Transaction
from bsvlib.keys import Key
from bsvlib.script import P2pkScriptType
from bsvlib.service import SensibleQuery

private_key = Key('L5agPjZKceSTkhqZF2dmFptT5LFrbr6ZGPvP7u4A6dvhTrr71WZ9')

w = Wallet(provider=SensibleQuery())
w.add_key(private_key)
w.add_key('5KiANv9EHEU4o9oLzZ6A7z4xJJ3uvfK2RLEubBtTz1fSwAbpJ2U')

t = Transaction()
t.add_inputs(w.get_unspents(refresh=True))
t.add_output(TxOutput(P2pkScriptType.locking(private_key.public_key().serialize()), 996, P2pkScriptType()))
t.add_change(private_key.address())

print(t.sign().broadcast())
  1. Sign with different SIGHASH flags, more examples
from bsvlib import Wallet, Transaction, TxInput, TxOutput
from bsvlib.constants import SIGHASH
from bsvlib.keys import Key

private_key = Key('L5agPjZKceSTkhqZF2dmFptT5LFrbr6ZGPvP7u4A6dvhTrr71WZ9')
unspents = Wallet([private_key]).get_unspents(refresh=True)

t = Transaction()
t.add_input(TxInput(unspents[0], sighash=SIGHASH.SINGLE_FORKID))
t.add_output(TxOutput(private_key.address(), 135))
t.sign()

# it's good to append any outputs AFTER the first output, no need to sign, can broadcast directly
print(t.add_change().broadcast())

Credits

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Comments
  • PrivateKey 初始化时,wif和chain优先级问题

    PrivateKey 初始化时,wif和chain优先级问题

    pk = PrivateKey('Kxd.... (MAIN wif)', chain=Chain.TEST) print(pk.chain)

    Chain.MAIN 初始化私钥带入的是一个带有 main 网属性的 wif。但是同时带入 chain 是测试网。这个时候,私钥会初始化为公网。我理解初始化时chain的权限,应该要高于wif的网络权限。

    question 
    opened by popwu 1
Releases(v0.5.0)
Owner
Aaron
Aaron
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