从web3py发送原始事务:类型错误:<lambda>()缺少4个必需的位置参数:"哈希","r","s"和'v'



我正试图使用以下代码通过web3py发送原始交易:

t = w3.eth.account.sign_transaction(test_contract.functions.edit("test").buildTransaction(
{
"nonce": w3.eth.get_transaction_count(w3.eth.default_account)
}
), pkey)
w3.eth.send_raw_transaction(t)

但是,当python到达最后一行时,我在控制台中出现了以下错误:

Traceback (most recent call last):
File "***/main.py", line 64, in <module>
w3.eth.send_raw_transaction(t)
File "***/venv/lib/python3.9/site-packages/web3/module.py", line 53, in caller
(method_str, params), response_formatters = method.process_params(module, *args, **kwargs)  # noqa: E501
File "***/venv/lib/python3.9/site-packages/web3/method.py", line 194, in process_params
_apply_request_formatters(params, self.request_formatters(method)))
File "***/venv/lib/python3.9/site-packages/eth_utils/functional.py", line 45, in inner
return callback(fn(*args, **kwargs))
File "***/venv/lib/python3.9/site-packages/web3/method.py", line 50, in _apply_request_formatters
formatted_params = pipe(params, request_formatters)
File "cytoolz/functoolz.pyx", line 667, in cytoolz.functoolz.pipe
File "cytoolz/functoolz.pyx", line 642, in cytoolz.functoolz.c_pipe
File "cytoolz/functoolz.pyx", line 254, in cytoolz.functoolz.curry.__call__
File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
File "***/venv/lib/python3.9/site-packages/web3/_utils/abi.py", line 799, in map_abi_data
return pipe(data, *pipeline)
File "cytoolz/functoolz.pyx", line 667, in cytoolz.functoolz.pipe
File "cytoolz/functoolz.pyx", line 642, in cytoolz.functoolz.c_pipe
File "cytoolz/functoolz.pyx", line 254, in cytoolz.functoolz.curry.__call__
File "cytoolz/functoolz.pyx", line 250, in cytoolz.functoolz.curry.__call__
File "***/venv/lib/python3.9/site-packages/web3/_utils/abi.py", line 833, in data_tree_map
return recursive_map(map_to_typed_data, data_tree)
File "***/venv/lib/python3.9/site-packages/web3/_utils/decorators.py", line 30, in wrapped
wrapped_val = to_wrap(*args)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 89, in recursive_map
items_mapped = map_collection(recurse, data)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 76, in map_collection
return datatype(map(func, collection))
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 88, in recurse
return recursive_map(func, item)
File "***/venv/lib/python3.9/site-packages/web3/_utils/decorators.py", line 30, in wrapped
wrapped_val = to_wrap(*args)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 89, in recursive_map
items_mapped = map_collection(recurse, data)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 76, in map_collection
return datatype(map(func, collection))
File "***/venv/lib/python3.9/site-packages/web3/_utils/abi.py", line 855, in __new__
return super().__new__(cls, *iterable)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 88, in recurse
return recursive_map(func, item)
File "***/venv/lib/python3.9/site-packages/web3/_utils/decorators.py", line 30, in wrapped
wrapped_val = to_wrap(*args)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 89, in recursive_map
items_mapped = map_collection(recurse, data)
File "***/venv/lib/python3.9/site-packages/web3/_utils/formatters.py", line 76, in map_collection
return datatype(map(func, collection))
TypeError: <lambda>() missing 4 required positional arguments: 'hash', 'r', 's', and 'v'

我使用的是infura自定义节点,这就是为什么我不能通过contract.functions.method.transact((发送交易。我不知道该怎么办,花了很多时间阅读文档,但一无所获。

我该怎么解决?

sign_transaction返回SignedTransaction对象,而send_raw_transaction接受原始事务字节。所以把你的最后一行改为:

w3.eth.send_raw_transaction(t.rawTransaction)

您可能还想将结果保存到一个变量中,以便以后跟踪事务。

您需要在使用具有ETH余额的帐户发送之前签署交易。

您需要使用签名中间件。

>>> from web3 import Web3, EthereumTesterProvider
>>> w3 = Web3(EthereumTesterProvider)
>>> from web3.middleware import construct_sign_and_send_raw_middleware
>>> from eth_account import Account
>>> acct = Account.create('KEYSMASH FJAFJKLDSKF7JKFDJ 1530')
>>> w3.middleware_onion.add(construct_sign_and_send_raw_middleware(acct))
>>> w3.eth.default_account = acct.address
# Now you can send a tx from acct.address without having to build and sign each raw transaction

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