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schema

Simple data validation library for checking data types and schemas

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Simple data validation library

Examples

validate JSON data against a schema$ python -c "from schema import Schema; Schema(str).validate('hello')"

check if data matches required structure$ python -c "from schema import Schema; Schema({'name': str, 'age': int}).validate({'name': 'John', 'age': 30})"

enforce data types in Python dictionaries

$ python -c "from schema import Schema, And; Schema({'email': And(str, lambda x: '@' in x)}).validate({'email': 'test@example.com'})"

validate list items are correct type$ python -c "from schema import Schema; Schema([int]).validate([1, 2, 3])"

test if optional fields exist in data

$ python -c "from schema import Schema, Optional; Schema({'name': str, Optional('title'): str}).validate({'name': 'John'})"