pybtctools¶
Python library for Bitcoin signatures and transactions
Features:¶
Functions have a simple interface, inputting and outputting in standard formats
Many functions can be taken out and used individually
Supports binary, hex and base58
Transaction deserialization format almost compatible with BitcoinJS
Electrum and BIP0032 support
Make and publish a transaction all in a single command line instruction
Includes non-bitcoin-specific conversion and JSON utilities
Disadvantages:¶
Not a full node, has no idea what blocks are
Relies on centralized service (blockchain.info) for blockchain operations, although operations do have backups (eligius, blockr.io). (Deprecated, please don’t rely on these functions, we’re working on replace the current API calls)
Usage:¶
from bitcoin import *
priv = sha256('some big long brainwallet password')
print(priv)
# 57c617d9b4e1f7af6ec97ca2ff57e94a28279a7eedd4d12a99fa11170e94f5a4'
pub = privtopub(priv)
print(pub)
# '0420f34c2786b4bae593e22596631b025f3ff46e200fc1d4b52ef49bbdc2ed00b26c584b7e32523fb01be2294a1f8a5eb0cf71a203cc034ced46ea92a8df16c6e9'
addr = pubtoaddr(pub)
print(addr)
# '1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6'
h = history(addr)
print(h)
# [{'output': u'97f7c7d8ac85e40c255f8a763b6cd9a68f3a94d2e93e8bfa08f977b92e55465e:0', 'value': 50000, 'address': u'1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6'}, {'output': u'4cc806bb04f730c445c60b3e0f4f44b54769a1c196ca37d8d4002135e4abd171:1', 'value': 50000, 'address': u'1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6'}]
outs = [{'value': 90000, 'address': '16iw1MQ1sy1DtRPYw3ao1bCamoyBJtRB4t'}]
tx = mktx(h,outs)
print(tx)
# '01000000025e46552eb977f908fa8b3ee9d2943a8fa6d96c3b768a5f250ce485acd8c7f7970000000000ffffffff71d1abe4352100d4d837ca96c1a16947b5444f0f3e0bc645c430f704bb06c84c0100000000ffffffff01905f0100000000001976a9143ec6c3ed8dfc3ceabcc1cbdb0c5aef4e2d02873c88ac00000000'
tx2 = sign(tx,0,priv)
print(tx2)
# '01000000025e46552eb977f908fa8b3ee9d2943a8fa6d96c3b768a5f250ce485acd8c7f797000000008b483045022100dd29d89a28451febb990fb1dafa21245b105140083ced315ebcdea187572b3990220713f2e554f384d29d7abfedf39f0eb92afba0ef46f374e49d43a728a0ff6046e01410420f34c2786b4bae593e22596631b025f3ff46e200fc1d4b52ef49bbdc2ed00b26c584b7e32523fb01be2294a1f8a5eb0cf71a203cc034ced46ea92a8df16c6e9ffffffff71d1abe4352100d4d837ca96c1a16947b5444f0f3e0bc645c430f704bb06c84c0100000000ffffffff01905f0100000000001976a9143ec6c3ed8dfc3ceabcc1cbdb0c5aef4e2d02873c88ac00000000'
tx3 = sign(tx2,1,priv)
print(tx3)
# '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'
pushtx(tx3)
# 'Transaction Submitted'
CLI¶
The legacy CLI is not available at the moment
Public interface:¶
Function |
Description |
|---|---|
privkey_to_pubkey |
(privkey) -> pubkey |
privtopub |
(privkey) -> pubkey |
pubkey_to_address |
(pubkey) -> address |
pubtoaddr |
(pubkey) -> address |
privkey_to_address |
(privkey) -> address |
privtoaddr |
(privkey) -> address |
add |
(key1, key2) -> key1 + key2 (works on privkeys or pubkeys) |
multiply |
(pubkey, privkey) -> returns pubkey * privkey |
ecdsa_sign |
(message, privkey) -> sig |
ecdsa_verify |
(message, sig, pubkey) -> True/False |
ecdsa_recover |
(message, sig) -> pubkey |
random_key |
() -> privkey |
random_electrum_seed |
() -> electrum seed |
electrum_stretch |
(seed) -> secret exponent |
electrum_privkey |
(seed or secret exponent, i, type) -> privkey |
electrum_mpk |
(seed or secret exponent) -> master public key |
electrum_pubkey |
(seed or secexp or mpk) -> pubkey |
bip32_master_key |
(seed) -> bip32 master key |
bip32_ckd |
(private or public bip32 key, i) -> child key |
bip32_privtopub |
(private bip32 key) -> public bip32 key |
bip32_extract_key |
(private or public bip32_key) -> privkey or pubkey |
deserialize |
(hex or bin transaction) -> JSON tx |
serialize |
(JSON tx) -> hex or bin tx |
mktx |
(inputs, outputs) -> tx |
mksend |
(inputs, outputs, change_addr, fee) -> tx |
sign |
(tx, i, privkey) -> tx with index i signed with privkey |
multisign |
(tx, i, script, privkey) -> signature |
apply_multisignatures |
(tx, i, script, sigs) -> tx with index i signed with sigs |
scriptaddr |
(script) -> P2SH address |
mk_multisig_script |
(pubkeys, k, n) -> k-of-n multisig script from pubkeys |
verify_tx_input |
(tx, i, script, sig, pub) -> True/False |
tx_hash |
(hex or bin tx) -> hash |
history |
(address1, address2, etc) -> outputs to those addresses |
unspent |
(address1, address2, etc) -> unspent outputs to those addresses |
fetchtx |
(txash) -> tx if present |
pushtx |
(hex or bin tx) -> tries to push to blockchain.info/pushtx |
access |
(json list/object, prop) -> desired property of that json object |
multiaccess |
(json list, prop) -> like access, but mapped across each list element |
slice |
(json list, start, end) -> given slice of the list |
count |
(json list) -> number of elements |
sum |
(json list) -> sum of all values |