alecthomas/voluptuous
CONTRIBUTIONS ONLY: Voluptuous, despite the name, is a Python data validation library. observed · 2026-08-28
Health v2 · maintenance only
73/100
- Activity 94
- Release rhythm 30
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5893
- days_rel: 258
- days_push: 39
- n_releases_24m: 1
Adoption not part of the score
1850 stars · 236 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Voluptuous is a Python data validation library intended for validating data coming into Python as JSON, YAML, and similar formats. It emphasizes simplicity, support for complex data structures, and useful error messages, with schemas defined as plain Python data structures.
Use cases
- validate incoming JSON payloads in a Python API
- validate YAML configuration files
- coerce and check nested dict and list structures
- validate API request bodies against a schema
- produce helpful error messages for invalid user input
- validate data parsed from external sources before processing
When to choose
- you want schema definitions as plain Python data structures
- you need validation of complex nested JSON/YAML data
- you want simple callable validators without subclassing
- you value clear, useful validation error messages
When to avoid
- you need a maintainer to fix bugs for you (project is contributions-only)
- you want a library under active feature development
- you need Pydantic-style typed model parsing with IDE support
- you need high-performance validation of very large datasets
Facets
library · maturity maintenance
serialization developer-tools developer-tools apis python data-validation schema-validation -validation yaml contributions-only data-engineering
3 sources
- readme: https://github.com/alecthomas/voluptuous · fetched 2026-08-28 · c0f19f6a6349
- homepage: https://pypi.org/project/voluptuous · fetched 2026-08-29 · 4b4e8fead74a
- registry_pypi: https://pypi.org/pypi/voluptuous/json · fetched 2026-08-29 · ad2e1cb52765
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| alecthomas/voluptuous | main | 73 |
For agents
markdown · JSON · MCP: product_card(name="alecthomas/voluptuous")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem