web3.py is a Python library for interacting with Ethereum.
It’s commonly found in decentralized apps (dapps) to help with sending transactions, interacting with smart contracts, reading block data, and a variety of other use cases.
Your next steps depend on where you’re standing:
Unfamiliar with Ethereum? → ethereum.org
Looking for Ethereum Python tutorials? → ethereum.org/python
Ready to code? → Quickstart
Interested in a quick tour? → Overview
Need help debugging? → StackExchange
Like to give back? → Contribute
Want to chat? → Discord
Read the source? → Github