Are OutOfGas exceptions raised in internal calls using
apply_message? (https://github.com/ethereum/py-evm/blob/master/eth/vm/forks/frontier/computation.py#L52). I'm only seeing an OutOfGas handler for apply_create_message.
Hi I just started contributing to this repo.
pytest tests throw exceptions below. Any ideas?=================================================================================================== test session starts ===================================================================================================
platform darwin -- Python 3.6.13, pytest-5.4.3, py-1.10.0, pluggy-0.13.1
plugins: Faker-6.5.0, asyncio-0.10.0, forked-1.2.0, cov-2.5.1, xdist-1.31.0, timeout-1.4.2, hypothesis-5.49.0
timeout: 300.0s
timeout method: signal
timeout func_only: False
collected 36221 items / 1 skipped / 36220 selected
....
.Killed: 9
<carver, Jason Carver> @junning-tong the test suite is very big, you probably don't want to run it all at once. Try starting off with something like
pytest tests/core. If you want more, then tox will set other specific test subsets up. You can see those options listed in tox -l or look at the circleCI config to see which ones we run on every pull request.
Hi I did a simple implementation of Code_Merlization ethereum/py-evm#1958
https://gist.github.com/junning-tong/6a28319d5e742037758470a053b575ca
Is anyone else working on this?
If not, I'd like to refine my current implementation and start adding test cases.
<carver, Jason Carver> py-evm with support for Berlin is released in v0.4.0-alpha.1: https://py-evm.readthedocs.io/en/latest/release_notes.html#py-evm-0-4-0-alpha-1-2021-03-22
<carver, Jason Carver> There is a bug in alpha.2 that crashes when trying to get receipts from the chain. A fix is pushed into master, but I'm going to try to get trinity stable before the next py-evm release. (Unless someone is stuck on that bug right now. Please speak up if you are!)
it's been 84 years....
<carver, Jason Carver> https://py-evm.readthedocs.io/en/latest/release_notes.html#py-evm-0-4-0-alpha-3-2021-03-24 includes the last changes necessary to get trinity released with Berlin support, which should happen tomorrow
Hey, I'm going through https://py-evm.readthedocs.io/en/latest/guides/understanding_the_mining_process.html but stucked on "chain.mine_block()" because it does not throw error, but returns "AttributeError: 'Test Chain' object has no attribute 'mine_block'". Can you help me to solver this?
I'm running py-evm 0.4.0-alpha.3 exactly this code with python3.8:
from eth import constants, Chain
from eth.vm.forks.frontier import FrontierVM
from eth.vm.forks.homestead import HomesteadVM
from eth.chains.mainnet import HOMESTEAD_MAINNET_BLOCK
from eth.db.atomic import AtomicDB
from eth.chains.mainnet import MAINNET_GENESIS_HEADER
chain_class = Chain.configure(
__name__='Test Chain',
vm_configuration=(
(constants.GENESIS_BLOCK_NUMBER, FrontierVM),
(HOMESTEAD_MAINNET_BLOCK, HomesteadVM),
),
)
chain = chain_class.from_genesis_header(AtomicDB(), MAINNET_GENESIS_HEADER)
chain.mine_block()
<carver, Jason Carver> The example in the doc you linked uses a mining chain, so I'm not sure how to improve the docs. But if you see a way, let us know!
This may be a silly question but is there a reason that new accounts cannot create contracts in py-evm? In particular, it seems that contract creation always uses the sender nonce - 1 which results in a encoding error if the sender nonce is 0.
The code where this happens is here: https://github.com/ethereum/py-evm/blob/44e0ee4cb1756522ffe294a379d4735a25701003/eth/vm/forks/frontier/state.py#L68.
@ThomasJ02_twitter - there is no in-memory fork officially for
py-evm/eth-tester yet
but what you can do is use
HTTPProvider to connect to a forked ganache node without any special config. Brownie bakes this in nicely.
Ah, I see - there is an
increment_nonce operation on a preceding line - nevermind :)
Hi, how can I modify the example at https://py-evm.readthedocs.io/en/latest/cookbook/index.html to run some bytecode in the Berlin VM?
I am working my way through the docs and here, https://py-evm.readthedocs.io/en/latest/guides/understanding_the_mining_process.html ... I do not get a eth.exceptions.ValidationError but instead get:
File "/path/py-evm/eth/db/account.py", line 325, in _get_encoded_account
raise MissingAccountTrieNode(*exc.args) from exc
eth.vm.interrupt.MissingAccountTrieNode: State trie database is missing node for hash 0x..., which is needed to look up account with address hash 0x... at root hash 0x... -- (b'...', b'...', b'...')I am using the following code with version v0.3.0-alpha.9
from eth import constants
from eth.chains.base import MiningChain
from eth.vm.forks.byzantium import ByzantiumVM
from eth.db.atomic import AtomicDB
from eth.chains.mainnet import MAINNET_GENESIS_HEADER
chain_class = MiningChain.configure(
__name__='TestChain',
vm_configuration=((constants.GENESIS_BLOCK_NUMBER, ByzantiumVM),)
)
genesis_header = MAINNET_GENESIS_HEADER.copy(gas_limit=3141592)
chain = chain_class.from_genesis_header(AtomicDB(), genesis_header)
chain.mine_block()
any hints?
<carver, Jason Carver> That defines the chain class iirc
<carver, Jason Carver> (I agree that could be clearer, though)
this https://py-evm.readthedocs.io/en/latest/cookbook/index.html#using-the-chain-object shows an example of instantiating
Chain, but not MiningChain. If I get enough clarity, I'll see if I can submit an PR.
same results using
FrontierVM https://pastebin.com/EzzDzAEW ... I should stew on it for a while. I appricate the help.
<carver, Jason Carver> That one should be working, has the
MiningChain, etc. Then we can work backwards from there to find the first intermediate step that seems broken.
<carver, Jason Carver> Looks like the plan is to move this channel over to this at some point soon:
https://discord.gg/b7H4GVuAGP
https://discord.gg/b7H4GVuAGP
<carver, Jason Carver> We'll keep monitoring this channel for a while, and there will be more reminders before this channel goes dark. But for anyone who prefers, they can head over to Discord now.
Hi, short question here, since I couldn't find anything to that topic online: Is it possible, to access Py-EVM remotely? For example, I want to have to processes, one providing the blockchain using Py-EVM, and another process (the client), which accesses the Py-EVM blockchain via Web3 "remotely" (same host, but another process)?
<carver> @keri @Felipe Selmo (fselmo) Ok, the London tests don't pass. Still something pretty fundamental since there are 5391 failures. It looks like most failures are about gas usage, so I think it's something other than EIP-1559, but I haven't dug in yet. Seems like a good exercise for everyone to take a look. ethereum/py-evm#2021
You can fetch this branch for local runs. It allows you to run
You can fetch this branch for local runs. It allows you to run
pytest tests/json-fixtures/blockchain/test_blockchain.py --fork London --maxfail 3. The branch should skip the slow tests, and let you see a couple failures before exiting (rather than wait for the full suite, which can be quite long, even when skipping slow tests)
