- Safe-eth-py includes a set of libraries to work with Ethereum and relevant Ethereum projects:
EthereumClient, a wrapper over Web3.py Web3 client including utilities to deal with ERC20/721 tokens and tracing.
Safe classes and utilities.
Price oracles for Uniswap, Kyber…
Django serializers, models and utils.
Quick start
Just run uv add safe-eth-py
If you want django ethereum utils (models, serializers, filters…) you need to run uv add safe-eth-py[django]
If you have issues building coincurve maybe you are missing some libraries
Contributing to safe-eth-py
Clone the repo, then to set it up:
uv sync --group dev --frozen
source .venv/bin/activate
pre-commit install -fAdd new address for new chains
If you want to add Safe Smart Account support for a new chain you must open a new issue.
Once the issue is created or edited, an automatic validation will be executed and a Pull Request will be created if everything is ok. Finally, the Safe team will review and merge the automatic Pull Request generated from the issue.
Ethereum utils
safe_eth.eth
class EthereumClient (ethereum_node_url: str): Class to connect and do operations with an ethereum node. Uses web3 and raw rpc calls for things not supported in web3. Only http/https urls are supported for the node url.
EthereumClient has some utils that improve a lot performance using Ethereum nodes, like the possibility of doing batch_calls (a single request making read-only calls to multiple contracts):
from safe_eth.eth import EthereumClient
from safe_eth.eth.contracts import get_erc721_contract
ethereum_client = EthereumClient(ETHEREUM_NODE_URL)
erc721_contract = get_erc721_contract(self.w3, token_address)
name, symbol = ethereum_client.batch_call([
erc721_contract.functions.name(),
erc721_contract.functions.symbol(),
])If you want to use the underlying web3.py library:
from safe_eth.eth import EthereumClient
ethereum_client = EthereumClient(ETHEREUM_NODE_URL)
ethereum_client.w3.eth.get_block(57)safe_eth.eth.constants
NULL_ADDRESS (0x000...0): Solidity address(0).
SENTINEL_ADDRESS (0x000...1): Used for Safe’s linked lists (modules, owners…).
Maximum and minimum values for R, S and V in ethereum signatures.
safe_eth.eth.oracles
Price oracles for Uniswap, UniswapV2, Kyber, SushiSwap, Aave, Balancer, Curve, Mooniswap, Yearn… Example:
from safe_eth.eth import EthereumClient
from safe_eth.eth.oracles import UniswapV2Oracle
ethereum_client = EthereumClient(ETHEREUM_NODE_URL)
uniswap_oracle = UniswapV2Oracle(ethereum_client)
gno_token_mainnet_address = '0x6810e776880C02933D47DB1b9fc05908e5386b96'
weth_token_mainnet_address = '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2'
price = uniswap_oracle.get_price(gno_token_mainnet_address, uniswap_oracle.weth_address)safe_eth.eth.utils
Contains utils for ethereum operations:
mk_contract_address_2(from_: Union[str, bytes], salt: Union[str, bytes], init_code: [str, bytes]) -> str: Calculates the address of a new contract created using the new CREATE2 opcode.
Ethereum django (REST) utils
Django utils are available under safe_eth.eth.django. You can find a set of helpers for working with Ethereum using Django and Django Rest framework.
It includes:
safe_eth.eth.django.filters: EthereumAddressFilter.
safe_eth.eth.django.models: Model fields (Ethereum address, Ethereum big integer field).
safe_eth.eth.django.serializers: Serializer fields (Ethereum address field, hexadecimal field).
safe_eth.eth.django.validators: Ethereum related validators.
safe_eth.safe.serializers: Serializers for Safe (signature, transaction…).
All the tests are written using Django Test suite.
Safe APIs
safe_eth.safe.api
Interaction with the Safe Transaction Service API to manage Safes, transactions, delegates, and messages.
To use the default Transaction Service, you need an API key. You can set this API key either as an environment variable or pass it directly to the constructor using the api_key parameter. To obtain your API key, create an account on the Safe Developer Portal at https://developer.safe.global. Additionally, you can choose to use a custom service by setting the base_url parameter, the API key may not be required.
export SAFE_TRANSACTION_SERVICE_API_KEY=[api-key-jwt-token-value]Example:
from safe_eth.eth import EthereumNetwork
from safe_eth.safe.api import TransactionServiceApi
transaction_service_api = TransactionServiceApi(EthereumNetwork.GNOSIS)
transactions = transaction_service_api.get_transactions("0xAedF684C1c41B51CbD228116e11484425d2FACB9")Contributors
1 maintainer
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