# Hypothesis: reference & source

> Property-based testing for Python that generates inputs and shrinks failing examples. Reference only in Awesome Python Dev; review its source, license and setup.

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Catalog reviewed: 2026-10-29. [Catalog source](https://github.com/m9rco/awesome-python-dev/blob/239895d3dd1353a48c5b39eee8eb028aadd8ac8f/src/awesome_python_dev/data/catalog.json).

References / Reference only

## Hypothesis

Property-based testing for Python that generates inputs and shrinks failing examples.

[Upstream project ↗](https://hypothesis.readthedocs.io/) [View repository ↗](https://github.com/HypothesisWorks/hypothesis) 

### Install with the upstream project

This entry is a reference. It has no `apd init` recipe in this catalog snapshot. Follow the [upstream documentation](https://hypothesis.readthedocs.io/)  for installation and configuration.

### Integration notes

Reference only: a project test dependency rather than an agent skill or MCP server. Adds generated-case coverage next to the pytest entry; recording it does not run or configure any test suite.

### Source & review

- Repository: HypothesisWorks/hypothesis
- License: MPL-2.0
- Category: python toolchain
- Reviewed: 2026-10-28
- GitHub stars at review: 9,113
- Installation: Reference only

Star counts are review snapshots, not live rankings. Upstream licenses apply to each resource.

### Review the source evidence

- [Upstream evidence 1 ↗](https://api.github.com/repos/HypothesisWorks/hypothesis) 
- [Upstream evidence 2 ↗](https://hypothesis.readthedocs.io/) 
- [Upstream evidence 3 ↗](https://github.com/HypothesisWorks/hypothesis/blob/master/LICENSE.txt)