# Install setu

Install from PyPI. The core install covers training and the full
`validate_estimator` suite; the PPL bridges and tuning are opt-in extras.

```bash
pip install setu-sbi                     # core (JAX + FlowJAX)
pip install "setu-sbi[pymc]"             # + PyMC / BlackJAX
pip install "setu-sbi[numpyro]"          # + NumPyro
pip install "setu-sbi[tuning]"           # + Optuna hyperparameter tuning
pip install "setu-sbi[all]"              # everything above
```

Each extra pulls one backend: `pymc` pulls PyMC and BlackJAX, `numpyro` pulls
NumPyro. The `tuning` extra is needed only for `tune_nle` / `tune_nre` /
`tune_mixed_nle`. `all` is the union of every extra.

## Distribution name vs import name

The distribution on PyPI is `setu-sbi`; the import name is `setu`.

```python
import setu
```

Install `setu-sbi`, import `setu`.