# Projects extending Hypothesis

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

- hs-dbus-signature - strategy to generate arbitrary D-Bus signatures
- hypothesis-regex - merged into Hypothesis as the `from_regex()` strategy.*
- lollipop-hypothesis - strategy to generate data based on Lollipop schema definitions.
- hypothesis-fspaths - strategy to generate filesystem paths.
- hypothesis-protobuf - strategy to generate data based on Protocol Buffer schema definitions.

If you’re thinking about writing an extension, consider naming it `hypothesis-{something}` - a standard prefix makes the community more visible and searching for extensions easier.