# Open Source 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.

- aur
- argon2_cffi
- attrs
- axelrod
- bidict
- binaryornot
- brotlipy
- chardet
- cmph-cffi
- cryptography
- dbus-signature-pyparsing
- fastnumbers
- flocker
- flownetpy
- funsize
- fusion-index
- hyper-h2
- into-dbus-python
- justbases
- justbytes
- loris
- mariadb-dyncol
- mercurial
- natsort
- pretext
- priority
- PyCEbox
- PyPy
- pyrsistent
- python-humble-utils
- pyudev
- qutebrowser
- RubyMarshal
- Segpy
- simoa
- srt
- tchannel
- vdirsyncer
- wcag-contrast-ratio
- yacluster
- yturl