Python Interface
A Python library for interfacing with Substrate blockchains, enabling storage queries, extrinsic composition, and SCALE encoding/decoding.
What is Python Interface?
Python Substrate Interface is a Python library designed to interface with Substrate-based blockchain nodes. It enables developers to query storage, compose and submit extrinsics (transactions), and handle SCALE encoding/decoding, which are core tasks for building applications on networks like Polkadot and Kusama. The library abstracts the complexities of direct RPC interactions and runtime metadata management.
Python developers building applications, bots, or tools that interact with Substrate-based blockchains such as Polkadot, Kusama, Acala, or Moonbeam.
It offers a high-level, Pythonic API that simplifies blockchain interactions, automates runtime property detection, and supports both RPC and light client connections, making it a versatile choice for Substrate development.
Overview
Python Polkadot SDK
Use Cases
Best For
- Querying account balances and on-chain storage data from Substrate nodes
- Building and submitting transactions (extrinsics) for Substrate-based blockchains
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