Create a virtual environment and activate it. Now from the root project directory run `./scripts/bootstrap`. This will install `pip-tools` and sync any dependencies for the first time.
## Dependency management
Dependencies are managed via [pip-tools].
### Adding a dependency
To add a dependency, edit `requirements.in` (or `dev-requirements.in`
for dev dependencies) and add your dependency then run `pip-compile
requirements.in`.
### Syncing dependencies
Run `pip-sync requirements.txt dev_requirements.txt`.
## Testing
Run the tests by invoking `py.test` in the project root. Make sure you
