web3py_ethereum_node_connection_and_block_number_check.py

1from web3 import Web3
2
3# Connect to a local or remote Ethereum node
4# For example, using a local node:
5w3 = Web3(Web3.HTTPProvider('http://127.0.0.1:8545'))
6
7# Or using a remote provider like Infura:
8# w3 = Web3(Web3.HTTPProvider('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID'))
9
10# Check if connected successfully
11if w3.is_connected():
12    # Get the latest block number
13    latest_block = w3.eth.block_number
14    print(f"Connected to Ethereum. Latest block number: {latest_block}")
15else:
16    print("Failed to connect to the Ethereum node.")