Voluptuous is a Python data validation library. It is primarily intended for validating data coming into Python as JSON, YAML, etc.
It has three goals: Simplicity, support for complex data structures, and provide useful error messages.
Voluptuous is free and open source software. It supports Python 3.6.
Features include:
- Validators are simple callables: No need to subclass anything, just use a function.
- Errors are simple exceptions: A validator can just raise Invalid(msg) and expect the user to get useful messages.
- Schemas are basic Python data structures: Should your data be a dictionary of integer keys to strings? {int: str} does what you expect. List of integers, floats or strings? [int, float, str].
- Designed from the ground up for validating more than just forms: Nested data structures are treated in the same way as any other type. Need a list of dictionaries? [{}]
- Consistency: Types in the schema are checked as types. Values are compared as values. Callables are called to validate. Simple.
Website: alecthomas.github.io/voluptuous
Support: GitHub Code Repository
Developer: Alec Thomas
License: BSD 3-Clause “New” or “Revised” License
Voluptuous is written in Python. Learn Python with our recommended free books and free tutorials.
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