deploy-contract.py

import json
import web3

from web3 import Web3

from web3.contract import ConciseContract
from web3.middleware import geth_poa_middleware


contract_name = 'name_registry'

abi_path = f'abi/{contract_name}.json'
with open(abi_path, 'r') as fp:
    contract_abi = fp.read().strip()

bytecode_path = f'bytecode/{contract_name}.txt'
with open(bytecode_path, 'r') as fp:
    contract_bytecode = fp.read().strip()


# web3.py instance
#w3 = Web3(Web3.EthereumTesterProvider())
from web3 import HTTPProvider
w3 = Web3(HTTPProvider('http://localhost:7545'))

#w3.middleware_stack.inject(geth_poa_middleware, layer=0)


# set pre-funded account as sender
w3.eth.defaultAccount = w3.personal.listAccounts[0]

# Instantiate and deploy contract
Greeter = w3.eth.contract(abi=contract_abi, bytecode=contract_bytecode)

# Submit the transaction that deploys the contract
tx_hash = Greeter.constructor().transact()

# Wait for the transaction to be mined, and get the transaction receipt
tx_receipt = w3.eth.waitForTransactionReceipt(tx_hash)

# Create the contract instance with the newly-deployed address
greeter = w3.eth.contract(
    address=tx_receipt.contractAddress,
    abi=contract_abi,
)

# Display the default greeting from the contract
name = b'crypto-diaz'
address = Web3.toChecksumAddress('0x5931188f0823fb076ed18618bbd89ef41e8655c1')

print('Calling contract register() function')
x = greeter.functions.register(name, address).transact()

print('lookup() name')
res = greeter.functions.lookup(name).call()
print(res)


#tx_hash = greeter.functions.setGreeting('Nihao').transact()

# Wait for transaction to be mined...
#w3.eth.waitForTransactionReceipt(tx_hash)