If checked, we download prev (parent) txs from the network, asynchronously.
This allows calculating the fee and showing "input addresses".
We could also SPV-verify the tx, to fill in missing tx_mined_status
(block height, blockhash, timestamp, short ids), but this is not done currently.
Note that there is no clean way to do this with electrum protocol 1.4:
`blockchain.transaction.get_merkle(tx_hash, height)` requires knowledge of the block height.
Loosely based on 6112fe0e51
- wallet.add_input_info() previously had a fallback to download parent
prev txs from the network (after a lookup in wallet.db failed).
wallet.add_input_info() is not async, so the network request cannot
be done cleanly there and was really just a hack.
- tx.add_info_from_wallet() calls wallet.add_input_info() on each txin,
in which case these network requests were done sequentially, not concurrently
- the network part of wallet.add_input_info() is now split out into new method:
txin.add_info_from_network()
- in addition to tx.add_info_from_wallet(), there is now also tx.add_info_from_network()
- callers of old tx.add_info_from_wallet() should now called either
- tx.add_info_from_wallet(), then tx.add_info_from_network(), preferably in that order
- tx.add_info_from_wallet() alone is sufficient if the tx is complete,
or typically when not in a signing context
- callers of wallet.bump_fee and wallet.dscancel are now expected to have already
called tx.add_info_from_network(), as it cannot be done in a non-async context
(but for the common case of all-inputs-are-ismine, bump_fee/dscancel should work regardless)
- PartialTxInput.utxo was moved to the baseclass, TxInput.utxo
self.interface might get set to None after decorator checks it but before func gets scheduled:
125.04 | E | asyncio | Task exception was never retrieved
future: <Task finished name='Task-408' coro=<Transaction.add_info_from_network.<locals>.add_info_to_txin() done, defined at ...\electrum\electrum\transaction.py:976> exception=AttributeError("'NoneType' object has no attribute 'get_transaction'")>
Traceback (most recent call last):
File "...\electrum\electrum\transaction.py", line 980, in add_info_to_txin
await txin.add_info_from_network(network=network, ignore_network_issues=ignore_network_issues)
File "...\electrum\electrum\transaction.py", line 375, in add_info_from_network
self.utxo = await fetch_from_network(txid=self.prevout.txid.hex())
File "...\electrum\electrum\transaction.py", line 362, in fetch_from_network
raw_tx = await network.get_transaction(txid, timeout=10)
File "...\electrum\electrum\network.py", line 866, in make_reliable_wrapper
async with OldTaskGroup(wait=any) as group:
File "...\aiorpcX\aiorpcx\curio.py", line 304, in __aexit__
await self.join()
File "...\electrum\electrum\util.py", line 1410, in join
self.completed.result()
File "...\electrum\electrum\network.py", line 889, in wrapper
return await func(self, *args, **kwargs)
File "...\electrum\electrum\network.py", line 1114, in get_transaction
return await self.interface.get_transaction(tx_hash=tx_hash, timeout=timeout)
AttributeError: 'NoneType' object has no attribute 'get_transaction'
Required a much higher mental load to parse the name "convert_bip32_path_to_list_of_uint32"
than to parse "convert_bip32_strpath_to_intpath".
And we already have the ~inverse: "convert_bip32_intpath_to_strpath".
SomberNight
Sander van Grieken
ThomasV
Calin Culianu