importorskip nutpie backend test

Author: jessegrabowski

tests/sampling/test_mcmc_external.py

@@ -117,6 +117,7 @@ def test_numba_backend_options(pymc_model, recwarn, backend):
 
 
 def test_invalid_nutpie_backend_raises(pymc_model):
+    pytest.importorskip("nutpie")
     with pytest.raises(ValueError, match='Expected one of "numba" or "jax"; found "invalid"'):
         with pymc_model:
             sample(nuts_sampler="nutpie[invalid]", random_seed=123, chains=2, tune=500, draws=500)