由web3py调用的契约函数没有错误，但没有效果(加纳奇本地网络)

Question

通过py-solc-x编译代码，然后使用web3py api将其部署到ganache本地网络。首先，调用一个get_balance函数并按预期返回。第二，调用传递函数，它将无错误地返回，但当我稍后调用get_balance时，余额没有变化。尝试通过发送原始事务来调用传输，但是它仍然没有效果.

metacoin.sol (由块菌文档提供)

pragma solidity ^0.8.0;

contract MetaCoin {

    mapping (address => uint) balances;

    event Transfer(address indexed _from, address indexed _to, uint _value);    

    constructor() public {
        balances[msg.sender] = 10000;
    }

    function transfer(address receiver, uint amount) public returns(bool sufficient) {
        if (balances[msg.sender] >= amount)
            return false;

        balances[msg.sender] -= amount;
        balances[receiver] += amount;
        emit Transfer(msg.sender, receiver, amount);   
        return true;
    }

    function get_balance(address account) public view returns(uint) {
        return balances[account];
    }
}

interacting.py

    # deploy contract by w3.eth.accounts[0]
    # the balance of the accounts[0] is 10000 (call get_balance() return 10000)
    # then transfer 1000 from accounts[0] to accounts[1]

    deployed_address = '0x538574C591F6e01E22eFa951153a29e6Fc505735'
    contract = w3.eth.contract(address=HexBytes(deployed_address), abi=abi)
    tx_hash = contract.functions.transfer(w3.eth.accounts[1], 1000).transact()
    tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
    print(tx_receipt.contractAddress)

    balance = contract.functions.get_balance(w3.eth.accounts[0]).call()
    print(balance)    
    # still 10000, expect 9000.

转移交易看上去不错。天然气/汽油价格和动态收费交易都已尝试过，但余额仍然相同。是因为本地网络设置的问题吗？或者我错过了一些必要的配置步骤。

Answer 1

检查交易是否通过。

assert tx_receipt.status == 1

另外，如果Ganache不起作用，那么试试以太测试为基础。这里的示例令牌测试。