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Let the PyMC backend import without jax #194

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Merged
dfm merged 1 commit into from
Aug 30, 2026
Merged

Let the PyMC backend import without jax #194

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Binary file added python/celerite2/pymc/__pycache__/ops.cpython-312.pyc
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14 changes: 12 additions & 2 deletions python/celerite2/pymc/ops.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,11 +19,18 @@
import pytensor
import pytensor.tensor as pt
from pytensor.graph import basic, op
from pytensor.link.jax.dispatch import jax_funcify

import celerite2.backprop as backprop
import celerite2.driver as driver

try:
from pytensor.link.jax.dispatch import jax_funcify
except ImportError: # pragma: no cover - jax is an optional dependency
# pytensor.link.jax.dispatch imports jax, which is not a required
# dependency of the PyMC backend. The conversion defined below is then
# simply not registered.
jax_funcify = None


def _resize_or_set(outputs, n, shape):
if outputs[n][0] is None:
Expand Down Expand Up @@ -160,7 +167,6 @@ def grad(self, inputs, gradients):


# JAX conversion for PyTensor JAX linker -------------------------------------
@jax_funcify.register(_CeleriteOp)
def _jax_funcify_celerite(op, node, **kwargs):
"""Map celerite2 PyTensor ops to their JAX counterparts."""

Expand Down Expand Up @@ -224,3 +230,7 @@ def general_matmul_upper_fwd(t1, t2, c, U, V, Y):
raise NotImplementedError(
f"No JAX conversion registered for {op.name}"
)


if jax_funcify is not None:
jax_funcify.register(_CeleriteOp)(_jax_funcify_celerite)
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