python - 为什么 Web3.py 交易功能不起作用？

Question

我正在尝试按照在线教程进行操作，但我总是遇到错误。有人可以帮帮我吗？我找不到任何可以方便的答案。

坚固性代码：

pragma solidity ^0.5.0;

contract Greeter {
    string public greeting;
    
    constructor() public {
        greeting = 'Hello';
    }
    
    function setGreeting(string memory _greeting) public {
        greeting = _greeting;
    }
    
    function getGreeting() view public returns(string memory) {
        return greeting;
    }
}

Python代码：

  from web3 import Web3
    import json
    
    abi = '[{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"constant":true,"inputs":[],"name":"greet","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"greeting","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"string","name":"_greeting","type":"string"}],"name":"setGreeting","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]'
# bytecode 'object'
bytecode = '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'

web3 = Web3(Web3.HTTPProvider('HTTP://127.0.0.1:7545'))
web3.eth.defaultAccount = web3.eth.accounts[0]
greeter_contract = web3.eth.contract(
    abi=json.loads(abi),
    bytecode=bytecode,
)
tx_hash = greeter_contract.constructor().transact()

回报：

    raise ContractLogicError(f'execution reverted: {response["error"]["message"]}')
web3.exceptions.ContractLogicError: execution reverted: VM Exception while processing transaction: revert

我不知道是什么导致了这么多错误。

标签： pythonethereumsolidityweb3