Data Contract Specification (Python)

The pip module datacontract-specification to read and write YAML files using the Data Contract Specification. The pip module was extracted from the Data Contract CLI, which is its primary user.

The version number of the pip module corresponds to the version of the Data Contract Specification it supports.

Version Mapping

Data Contract Specification Version	Pip Module Version
1.1.0	1.1.0

Fixes of a specific version are shipped with post released: 1.1.0.post1, 1.1.0.post2, etc.

Installation

pip install datacontract-specification

Usage

from datacontract_specification.model import DataContractSpecification

# Load a data contract specification from a file
data_contract = DataContractSpecification.from_file('path/to/your/data_contract.yaml')
# Print the data contract specification as a YAML string
print(data_contract.to_yaml())

from datacontract_specification.model import DataContractSpecification

# Load a data contract specification from a string
data_contract_str = """
dataContractSpecification: 1.1.0
id: urn:datacontract:checkout:orders-latest
info:
  title: Orders Latest
  version: 2.0.0
  description: |
    Successful customer orders in the webshop.
    All orders since 2020-01-01.
    Orders with their line items are in their current state (no history included).
  owner: Checkout Team
  status: active
  contact:
    name: John Doe (Data Product Owner)
    url: https://teams.microsoft.com/l/channel/example/checkout
"""
data_contract = DataContractSpecification.from_string(data_contract_str)
# Print the data contract specification as a YAML string
print(data_contract.to_yaml())