Assets, Ethereum

Can You Write Ethereum Smart Contracts in Python?

Python is a versatile language that you can use on the backend, frontend, or full stack of a web application. You can also use Python to write smart contracts for Ethereum.

In this article, we’ll show you how to write smart contracts in Python for Ethereum.

Smart contracts are programs that run on the Ethereum blockchain. They are used to automate transactions and agreements between parties.

Smart contracts are written in code that is compiled into bytecode, which is then deployed to the Ethereum blockchain.

The code for a smart contract is written in a high-level programming language and then compiled into bytecode, which is a low-level language that can be executed by the Ethereum Virtual Machine (EVM). The EVM is a Turing-complete virtual machine that runs on the Ethereum blockchain.

There are a few different languages that can be used to write smart contracts for Ethereum, but Python is one of the most popular. This is because Python is a versatile language that can be used for backend, frontend, or full stack development.

In addition, there are many libraries and frameworks available in Python that make it easy to develop smart contracts.

One of the most popular frameworks for developing smart contracts in Python is web3.py. web3.

py is a library that allows you to interact with the Ethereum blockchain from Python. In addition, it provides an API for interacting with smart contracts.

In order to write a smart contract in Python, you will need to install the web3.py library. You can do this using pip:

pip install web3

Once you have installed web3.py, you will need to create a file called “contracts.py”.

In this file, you will write your smart contract code. For this example, we will create a simple contract that stores a value on the blockchain.

import json
import web3

from web3 import Web3
from solc import compile_source
from web3.contract import ConciseContract

def main():

# Compile Solidity source code

contract_source_code = ”’

pragma solidity ^0.4 .0 ;

contract SimpleStorage {

uint storedData ;

function set (uint x) public {

storedData = x;

}

function get() public view returns (uint) {

return storedData; } } ”’ ; . . w3 = Web3(Web3 .WebSocketProvider( “ws://127.1:8546”)) print(w3 .version) account_1 = ‘ 0x4b0897b0513fdc7c541b6d9d7e929c4e5364d2db’ account_2 = ‘ 0xdf08f82de32b8d460adbe8d72043e3a7e25aef50’ address = w3 .toChecksumAddress( ‘ 0x4C0897b0513fdc7c541b6D9D7E929C4E5364D2DB’) gas = 1000000 gasPrice = w3 .eth .gasPrice balance_1= w3 .getBalance(account_1) balance_2= w3 .getBalance(account_2) print(‘Account 1 Balance: {}’. format(balance_1)) print(‘Account 2 Balance: {}’. format(balance_2)) compiled_sol = compile_source (contract_source _code) contract_interface= compiled _sol [‘ :SimpleStorage’] abi= contract _interface [‘abi’] bytecode=contract _interface [‘bin’] Contract=w 3 enode:// 127.0 1 : 8 5 4 6 ? account 1 & account 2 &abi&bytecode’ ) Contract=w 3 enode:// 127.

0 1 : 8 5 4 6 ? from _account= account 1 ,gasPrice=gasPrice ,gas=gas ) txnHash = Contract._simpleSetter(‘Hello Solidity’, transact={‘from’: account}) txnReceipt = w 3 getTransactionReceipt(txnHash) print(‘Txn Hash: {}’.format(txnHash)) print(‘Txn Receipt: {}’.format(txnReceipt)) def main(): # Compile Solidity source code contract Source Code=’pragma solidity ^0.4 ; contract SimpleStorage{ uint stored Data; function set (uint x) public { storedData=x; } function get () public view returns (unit){ return storedData;} }”; w 3 =Web 3 (Web 3 WebSocketProvider(“ws://127.1:8546″)) print(w 3 version) account 1=”0x4b0897B0513fdc7C541B6D9D7E929C4E5364D2Db” account 2=”0xdf08f82de32B8D460adbe8D72043e 3 A 7 e 25 AEF50″ address=w 3 toChecksumAddress(“0x4 C 08 97 B 051 3 fdc 7 c 541 b 6 d 9 d 7 e 929 c 4 e 5364 d 2 db”) gas=1000000 gasPrice=w 3 eth gasPrice balance 1= w 3 eth getBalance (account 1 ) balance 2= w 3 eth getBalance (account 2 ) print(‘Account 1 Balance:{}’.format(balance 1)) print(‘Account 2 Balance:{}’.format(balance 2)) compiledSol source (‘:SimpleStorage’) contract Interface compiledSol[‘abi’] byteCode Contract Interface[‘bin’] Contract new WebSocketProvider(“ws://127.8546”)? from _accounts account? &abi&byteCode ) TxnHash Contract._simpleSetter(“Hello Solidity”, transact={‘from’:account}) txnReceipt wgetTransactionReceipt TxnHash Printf TxnHash:’% s’, TxnHash) Print Txn Receipt:’% s’, TxnReceipt) If __name__== “__main__”: Main().

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