d2c4904ef7
The coin selection strategy for MiniWallet is quite straight-forward: simply pick a single UTXO with the largest value: self._utxos = sorted(self._utxos, key=lambda k: k['value']) utxo_to_spend = utxo_to_spend or self._utxos.pop() If there are several candidates with the same value, however, it is not clear which one is taken. This can be particularly problematic for coinbase outputs with fixed block subsidy, since spending could lead to a 'bad-txns-premature-spend-of-coinbase' reject if an UTXO from a too-recent block is picked. Introduce block height as second criteria (saved in self._utxos in the methods generate(...) and rescan_utxos(...)), in order to avoid potential issues with coinbases that are not matured yet. |
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| .. | ||
| __init__.py | ||
| address.py | ||
| authproxy.py | ||
| bdb.py | ||
| bip340_test_vectors.csv | ||
| blocktools.py | ||
| coverage.py | ||
| descriptors.py | ||
| key.py | ||
| messages.py | ||
| muhash.py | ||
| netutil.py | ||
| p2p.py | ||
| script.py | ||
| script_util.py | ||
| segwit_addr.py | ||
| siphash.py | ||
| socks5.py | ||
| test_framework.py | ||
| test_node.py | ||
| test_shell.py | ||
| util.py | ||
| wallet.py | ||
| wallet_util.py | ||