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Builders Guide Home
Software Library

Web3.py

by Ethereum Foundation

A Python libary to make dApps and interact with EVM blockchains
Supported Chains
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python-logoPython
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Further ReadingsInteract with Ethereum using Web3.pyInteract with Ethereum using Web3.pyarrowFetch Transaction History using Web.pyFetch Transaction History using Web.pyarrowEstimate Gas Price using Web3.pyEstimate Gas Price using Web3.pyarrow
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value insights

Quick Fact

Web3.py is the most well-known and used Python library for Ethereum.

Web3.py is a Python library designed to interact with the Ethereum blockchain. It enables developers to create, deploy, and interact with smart contracts, manage transactions, and fetch blockchain data, making it an essential tool for building decentralized applications (dApps) on Ethereum.

Comprehensive Ethereum API

Web3.py provides an extensive API for interacting with the Ethereum blockchain. It includes modules for managing Ethereum nodes, accounts, smart contracts, and transactions. The library simplifies the development process by offering various utility functions, such as encoding and decoding data, handling Ethereum addresses, and performing currency conversions.

Multiple Connection Methods and Enhanced Developer Tools

The library supports various connection methods to Ethereum nodes, including HTTP, IPC, and WebSocket, allowing developers to choose the most suitable option for their needs. Additionally, Web3.py offers features like dynamic contract types, TypeScript support, and custom output formatters, which streamline the development process and make building, testing, and deploying smart contracts and other blockchain functionalities​​easier.

Robust Community Support and Resources

As one of the most established Python Ethereum libraries, Web3.py benefits from a large and active community. This extensive community support provides many community-driven resources, including comprehensive documentation, tutorials, and forums, which are invaluable for troubleshooting and learning. The active community ensures continuous improvement and quick resolution of issues, making Web3.py a reliable choice for Ethereum developers​ .

Further ReadingsInteract with Ethereum using Web3.pyInteract with Ethereum using Web3.pyarrowFetch Transaction History using Web.pyFetch Transaction History using Web.pyarrowEstimate Gas Price using Web3.pyEstimate Gas Price using Web3.pyarrow
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