Web3.py TypeError：交易具有无效字段：{'value'：Decimal

Question

想知道是否有人知道如何通过 web3.py 发送最大数量的以太币或我的全部以太币余额？这是我一直在使用的代码块。在“值”中，我只能发送特定数量的以太币，并且不知道如何让它找出它可以发送的最大以太币量。

balance_sender = web3.from_wei(web3.eth.get_balance(sender_address), 'ether')
balance_recipient = web3.from_wei(web3.eth.get_balance(recipient_address), 'ether')

print(f'The balance of {sender_address} is: {balance_sender} ETH')
print(f'The balance of {recipient_address} is: {balance_recipient} ETH')

# Get and determine gas parameters
latest_block = web3.eth.get_block("latest")
base_fee_per_gas = latest_block.baseFeePerGas   # Base fee in the latest block (in wei)
max_priority_fee_per_gas = web3.to_wei(1, 'gwei') # Priority fee to include the transaction in the block
max_fee_per_gas = (5 * base_fee_per_gas) + max_priority_fee_per_gas # Maximum amount you’re willing to pay

# Define the transaction parameters
transaction_params = {
    'from': sender_address,
    'to': recipient_address,
    'value': web3.to_wei(0.002, 'ether'),  # Transaction value (0.1 Ether in this example)
    'nonce': web3.eth.get_transaction_count(sender_address),
    'gas': 21000,  # Gas limit for the transaction
    'maxFeePerGas': max_fee_per_gas, # Maximum amount you’re willing to pay
    'maxPriorityFeePerGas': max_priority_fee_per_gas, # Priority fee to include the transaction in the block
    'chainId': 11155111  # ChainId of Sepolia Testnet
}

# Sign the transaction
transaction = web3.eth.account.sign_transaction(transaction_params, private_key)

# Send the transaction
transaction_hash = web3.eth.send_raw_transaction(transaction.rawTransaction)

# Wait for the transaction to be mined
transaction_receipt = web3.eth.wait_for_transaction_receipt(transaction_hash)

我尝试创建一个从balance_sender中减去gas的函数，但它只是返回了

类型错误：交易具有无效字段：{'value'：Decimal（'0.011652999998614'）}'

Answer 1

尝试：

value

: int(web3.to_wei(0.002, '以太'))