## Introduction to web3.py We're going to learn how to deploy a contract to the Ethereum blockchain by using the web3.py library. We're going to start by installing web3.py in our UV environment. ```bash uv add web3 ``` We can check to make sure it's installed by running `uv sync` and checking our `pyproject.toml` file for the web3.py dependency. Next, we'll import web3.py and the Ethereum Tester Provider: ```python from web3 import Web3 from web3.providers.eth_tester import EthereumTesterProvider ``` We'll then initialize a Web3 object by using the Ethereum Tester Provider: ```python w3 = Web3(EthereumTesterProvider()) ``` The Ethereum Tester Provider simulates a local blockchain node, which is useful for development. Now, let's get our bytecode from the Vyper object. We'll use the `compile_code` function and specify the output format as `bytecode`: ```python compilation_details = compile_code(favorites_code, output_formats=['bytecode']) ``` We can print out the `compilation_details` to see the results of compilation, including the byte code. ```python print(compilation_details) ``` Finally, we can create a contract instance by using the bytecode from the `compilation_details` object. ```python favorites_contract = w3.eth.contract(bytecode=compilation_details['bytecode']) ``` We'll explore how to interact with the deployed contract in later lessons.