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在过去的几天里,我一直在努力尝试在 2 个以太坊钱包之间转移自定义令牌。

我正在使用 populus (python) 并且似乎很容易进行ETH转移,但我不明白如何使用自定义令牌做同样的事情。

这是我的python代码:

from decimal import Decimal
import populus
from populus.utils.accounts import is_account_locked
from populus.utils.cli import request_account_unlock
from eth_utils import from_wei
from ico.utils import check_succesful_tx

# Which network we deployed our contract
chain_name = "horton"

# Owner account on geth
owner_address = "0xaeCb8415d5553F080d351e82b2000f123BFBc23C"

# Where did we deploy our token
contract_address = "0x15f173b7aca7cd4a01d5f8360e65fb4491d270c1"

receiver = "0x4c042bf285689891117AED16005004a6de2cC4FB"

amount = Decimal("1.0")

project = populus.Project()

with project.get_chain(chain_name) as chain:

    web3 = chain.web3
    print("Web3 provider is", web3.currentProvider)
    print("Owner address is", owner_address)
    print("Owner balance is", from_wei(web3.eth.getBalance(owner_address), "ether"), "ETH")

    # Goes through geth account unlock process if needed
    if is_account_locked(web3, owner_address):
        request_account_unlock(chain, owner_address, None)

    transaction = {"from": owner_address}
    FractionalERC20 = chain.contract_factories.FractionalERC20

    token = FractionalERC20(address=contract_address)
    decimals = token.call().decimals()
    decimal_multiplier = 10 ** decimals

    decimals = 18
    decimal_multiplier = 10 ** decimals
    print("Token has", decimals, "decimals")
    print("Owner token balance is", token.call().balanceOf(owner_address) / decimal_multiplier)

    # Use lowest denominator amount
    normalized_amount = int(amount * decimal_multiplier)

    # Transfer the tokens
    txid = token.transact({"from": owner_address}).transfer(receiver, normalized_amount)
    print("TXID is", txid)
    check_succesful_tx(web3, txid)

但是在执行上述代码时出现错误:

File "ICO_transfering_tokens.py", line 39, in <module>
    FractionalERC20 = chain.contract_factories.FractionalERC20
AttributeError: 'LocalGethChain' object has no attribute 'contract_factories'

我理解错误,但不知道如何修复它。


如果有人有其他语言的解决方案python,我很乐意接受它作为正确答案。我需要向钱包列表发送小额付款,而且我的时间很紧,欢迎任何帮助!

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1 回答 1

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显然你已经从ICO project复制了这段代码。为了让用户更容易回答,告诉你从哪里得到源代码是有意义的。这个项目在这里有自己的聊天群

异常的原因是在 Populous 的某些版本中,API 已更改,而您使用的示例是针对旧版本的 API。请将 ICO 存储库和 Populous 升级到您可以在 ICO 存储库 Travis 输出中找到的最新兼容版本配置。

请替换此行:

FractionalERC20 = chain.contract_factories.FractionalERC20

有了这个:

from ico.utils import get_contract_by_name

FractionalERC20 = = get_contract_by_name(chain, "FractionalERC20")
于 2017-10-15T17:44:40.123 回答