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Xian Contracting

Xian Contracting is a Python-based framework for developing and executing smart contracts on the Xian Network. It adds contract decorators and context to Python, provides Variable and Hash storage, and includes client, storage-driver, event and code-linting interfaces.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Xian Contracting — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when developing Python-based smart contracts for Xian and when a workflow needs the framework’s storage types, contract client or execution metering.

Who it is for

  • Developers writing smart contracts for the Xian Network.
  • Python developers who want contract storage, callable methods and a client interface in their development workflow.

Documented uses

  • Write contract initialization and externally callable functions.
  • Represent contract state with single-value or keyed storage.
  • Submit contract code, retrieve a contract instance and call its methods through ContractingClient.
  • Check contract code for common issues with the documented linter.
Before you choose

Requirements & limits

  • The framework targets Xian smart-contract development rather than general Python application development.
  • Contracts use a subset of Python with additional framework constructs and import controls.
  • The documentation describes a local client interface but does not specify a network deployment or transaction-signing workflow.
  • The repository states that use is non-commercial under Creative Commons Attribution-NonCommercial 4.0 International.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Submit contract code and call a contract method with ContractingClient

Use the documented client interface to submit contract code, retrieve the contract instance and invoke a method.

Before you start

  • Xian Contracting installed.
  • Contract code saved in a file.
  • A Python environment in which to use ContractingClient.

Steps

  1. Import ContractingClient from contracting.client and initialize a client.

  2. Read the contract code from a file.

  3. Submit the code with client.submit, providing a contract name and code.

  4. Retrieve the contract with client.get_contract and call a method on the returned instance.

Expected outcome

The documented workflow submits contract code and demonstrates retrieving and calling a contract method through the client.

Guide limitations

  • The example does not specify a network connection, deployment configuration or transaction-signing procedure.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
xian-network/xian-contracting · Official homepage title · retained in its source language
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