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# Projects using Hypothesis

The following is a non-exhaustive list of open source projects I know are using Hypothesis. If you’re aware of any others please add them to the list! The only inclusion criterion right now is that if it’s a Python library then it should be available on PyPI.

You can find hundreds more from the Hypothesis page at libraries.io, and thousands on GitHub. Hypothesis has over 8 million downloads per week, and was used by more than 5% of Python users surveyed by the PSF in 2023.

- aur

- argon2_cffi

- array-api-tests

- attrs

- axelrod

- bidict

- binaryornot

- brotlicffi

- chardet

- cmph-cffi

- cryptography

- dbus-signature-pyparsing

- dry-python/returns

- fastnumbers

- flocker

- flownetpy

- funsize

- fusion-index

- hyper-h2

- into-dbus-python

- ivy

- justbases

- justbytes

- loris

- mariadb-dyncol

- MDAnalysis

- mercurial

- napari

- natsort

- numpy

- pandas

- pandera

- poliastro

- pretext

- priority

- PyCEbox

- PyPy

- pyrsistent

- python-humble-utils

- pyudev

- qutebrowser

- RubyMarshal

- Segpy

- sgkit

- simoa

- srt

- tchannel

- vdirsyncer

- wcag-contrast-ratio

- xarray

- yacluster

- yturl

- zenml