web3_premium 0.0.17

Data Science friendly wrapper for web3py

web3-premium

Data Science friendly wrapper for web3py

Installation

python3 -m pip install web3_premium

Explorers wrapper

Usage: <explorer>.<module>.<action>(<params>)
List of modules and module actions you can get from explorer documentation (etherscan, for example: https://docs.etherscan.io/api-endpoints/accounts)

import time

from web3_premium.explorer import etherscan


timestamp = int(time.time())
etherscan.block.getblocknobytime(timestamp=timestamp, closest="before")

You can also add new explorer, which support etherscan/blockscout api format, for example:

import time

from web3_premium.explorer import Explorer


timestamp = int(time.time())
andromeda = Explorer("https://andromeda-explorer.metis.io/api")
andromeda.block.getblocknobytime(timestamp=timestamp, closest="before")

Web3 smart contracts wrapper

Basic example with pure web3:

# We wanna to know, how many USDT at ethereum holds zero address (0x00000....) at 01.08.2022 (block 15253306)
from web3 import Web3

BLOCK = 15253306

w3 = Web3(Web3.HTTPProvider("https://rpc.ankr.com/eth"))
usdt_abi = ...  # some big json
usdt = w3.eth.contract(
    Web3.toChecksumAddress("0xdaC17F958D2ee523a2206206994597C13D831ec7"), abi=usdt_abi
)
burnedUsdt = usdt.functions.balanceOf(
    "0x0000000000000000000000000000000000000000"
).call(block_identifier=BLOCK)

With web3-premium:

# We wanna to know, how many USDT at ethereum holds zero address (0x00000....) at 01.08.2022 (block 15253306)
from web3_premium.chains import ethereum
from web3_premium.contract import Contract

BLOCK = 15253306

usdt = Contract("0xdaC17F958D2ee523a2206206994597C13D831ec7", ethereum)
burnedUsdt = usdt.balanceOf("0x0000000000000000000000000000000000000000", block=BLOCK)

Custom node for predefined chains

You can set env variable for overriding default rpc (ankr). For example, for ethereum you should set ETHEREUM_RPC=infura.com/....