ethereum/web3.py
Web3.py
Web3.py ist eine Python-Bibliothek, die ein umfassendes Interface für die Interaktion mit der Ethereum-Blockchain bereitstellt. Sie fungiert als JSON-RPC-Client, der es Anwendungen ermöglicht, sich über HTTP, WebSocket oder IPC mit Blockchain-Nodes zu verbinden, um den Netzwerkzustand zu lesen und Transaktionen zu senden.
Die Bibliothek enthält ein dediziertes Smart-Contract-Interface, das Application-Binary-Interface-Definitionen verwendet, um Contracts bereitzustellen und On-Chain-Funktionen auszuführen. Sie bietet zudem ein Kryptografie-Toolkit zum Signieren von Transaktionen und zum Hashing von Daten mit Keccak, neben Utilities zur Übersetzung von ENS-Domainnamen in Blockchain-Adressen.
Breite Funktionen decken das Transaktionsmanagement und das Abrufen von Blockchain-Daten ab, einschließlich der Möglichkeit, Block-Header abzurufen, Event-Logs zu filtern und Währungseinheiten umzurechnen. Das System unterstützt das Netzwerkmanagement durch Request-Interception-Middleware, RPC-Call-Batching und die Überwachung persistenter Verbindungen für Echtzeit-Events.
Features
- Blockchain Network Integrations - Provides a comprehensive Python interface for connecting to Ethereum nodes and interacting with the blockchain.
- Blockchain Network Interaction - Provides a comprehensive interface for reading network state and sending transactions to the Ethereum blockchain.
- Blockchain Data - Provides APIs for querying blockchain networks, retrieving account balances, and fetching transaction history.
- Blockchain Client Toolkits - Provides a comprehensive toolkit for managing transactions, hashing data with Keccak, and handling cryptographic keys.
- Blockchain Network Connections - Establishes connections to blockchain nodes via HTTP, WebSocket, or IPC.
- JSON-RPC Implementations - Functions as a JSON-RPC client for communicating with blockchain nodes via HTTP, WebSocket, or IPC.
- Protocol-Agnostic Transport Layers - Provides a unified API layer that abstracts communication across HTTP, WebSocket, and IPC transports.
- Blockchain Transaction Signing - Signs and broadcasts raw transactions to trigger state changes or transfer digital assets.
- Keccak-256 Hash Computations - Implements the Keccak-256 hash algorithm for generating contract selectors and verifying data integrity.
- Transaction Signing and Broadcasting - Enables the creation, signing, and broadcasting of raw transactions to the network using private keys.
- Decentralized Application Development - Provides the backend logic for building decentralized applications, including wallet management and transaction signing.
- Ethereum Client Libraries - Serves as a primary Python client library for interacting with Ethereum nodes and managing dApp state.
- Smart Contract Callers - Deploys smart contracts and executes functions using ABIs to handle state overrides and gas estimation.
- Encoding and Decoding Routines - Implements ABI encoding and decoding to translate blockchain data into Python types.
- Contract Interface Toolkits - Provides tools for managing ABIs and interacting with smart contracts to read or modify on-chain state.
- ABI Element Parsers - Parses function and event attributes to verify argument encoding and retrieve unique selectors.
- Remote Block Fetching - Fetches historical block headers and specific transaction details from remote blockchain nodes.
- Blockchain Unit Converters - Translates numeric values between the smallest atomic blockchain units and human-readable currency denominations.
- Blockchain Transaction Orchestration - Manages the transaction lifecycle including gas estimation and batching for modern Ethereum transaction types.
- Blockchain Address Resolvers - Translates human-readable domain names into their corresponding hexadecimal blockchain addresses.
- Websocket Connection Managers - Maintains persistent WebSocket and IPC connections for real-time blockchain event monitoring.
- Decentralized Naming Resolvers - Implements resolution of human-readable ENS domains into blockchain addresses.
- ENS Domain Resolutions - Resolves Ethereum Name Service domain names into blockchain addresses and associated metadata.
- Batch Request Handlers - Groups multiple JSON-RPC calls into a single request to reduce network overhead.
- Address Checksum Validators - Provides logic for verifying Ethereum address integrity using mixed-case checksums.
- Data Type Conversions - Transforms values between raw bytes, hexadecimal strings, and Python integers for EVM compatibility.
- Typed Data Signatures - Provides support for creating cryptographic signatures for structured data following standardized formatting rules.
- Blockchain Address Validation - Verifies if strings are valid blockchain addresses and confirms they follow checksum formatting.
- Request Interception Middleware - Provides a stack of configurable middleware layers to intercept and modify network requests and responses.
- Deployed Contract Monitoring - Tracks real-time behavior and events emitted by deployed smart contracts.
- Blockchain Event Monitors - Tracks real-time smart contract events and block updates via WebSocket subscriptions.
- Blockchain Event Logs - Implements filtering of blockchain event logs using topics and non-indexed arguments.
- Blockchain Event Subscriptions - Maintains long-lived connections to receive real-time notifications for blockchain logs and new blocks.
- Backend Ethereum Libraries - Python library for interacting with the Ethereum blockchain.
- Blockchain SDKs - Python library for interacting with Ethereum nodes.
