Lesson 4 - Attribute Error

[oceanKingEth]

In lesson 4, trying to send first transaction to ganache.
everything has worked until i deploy after this line:

tx_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)

i get this error:
AttributeError: 'Eth' object has no attribute 'send_raw_transaction'

could someone please point me in the right direction to figure this out?

[PatrickAlphaC]

Does all the rest of your code look like this:

import json

from web3 import Web3

# In the video, we forget to `install_solc`
# from solcx import compile_standard
from solcx import compile_standard, install_solc
import os
from dotenv import load_dotenv

load_dotenv()


with open("./SimpleStorage.sol", "r") as file:
    simple_storage_file = file.read()

# We add these two lines that we forgot from the video!
print("Installing...")
install_solc("0.6.0")

# Solidity source code
compiled_sol = compile_standard(
    {
        "language": "Solidity",
        "sources": {"SimpleStorage.sol": {"content": simple_storage_file}},
        "settings": {
            "outputSelection": {
                "*": {
                    "*": ["abi", "metadata", "evm.bytecode", "evm.bytecode.sourceMap"]
                }
            }
        },
    },
    solc_version="0.6.0",
)

with open("compiled_code.json", "w") as file:
    json.dump(compiled_sol, file)

# get bytecode
bytecode = compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["evm"][
    "bytecode"
]["object"]

# get abi
abi = json.loads(
    compiled_sol["contracts"]["SimpleStorage.sol"]["SimpleStorage"]["metadata"]
)["output"]["abi"]

w3 = Web3(Web3.HTTPProvider(os.getenv("RINKEBY_RPC_URL")))
chain_id = 4

# For connecting to ganache
# w3 = Web3(Web3.HTTPProvider("http://0.0.0.0:8545"))
# chain_id = 1337
my_address = "YOUR_ADDRESS_HERE"
private_key = os.getenv("PRIVATE_KEY")

# Create the contract in Python
SimpleStorage = w3.eth.contract(abi=abi, bytecode=bytecode)
# Get the latest transaction
nonce = w3.eth.getTransactionCount(my_address)
# Submit the transaction that deploys the contract
transaction = SimpleStorage.constructor().buildTransaction(
    {"chainId": chain_id, "from": my_address, "nonce": nonce}
)
# Sign the transaction
signed_txn = w3.eth.account.sign_transaction(transaction, private_key=private_key)
print("Deploying Contract!")
# Send it!
tx_hash = w3.eth.send_raw_transaction(signed_txn.rawTransaction)

[oceanKingEth]

thanks Patrick! I was able to deploy after the next step in the video.