refactor: changed boolean logic

Michal-Novomestsky · Michal-Novomestsky · commit 8433ff6e0caf · 2025-08-11T20:05:39.000+10:00
diff --git a/pymc_extras/inference/inla.py b/pymc_extras/inference/inla.py
@@ -157,7 +157,7 @@ def fit_INLA(
     _, _, _, tau = x.owner.inputs
 
     # Latent field should use precison rather than covariance
-    if not tau.owner or tau.owner.op != matrix_inverse:
+    if not (tau.owner and tau.owner.op == matrix_inverse):
         raise ValueError(
             f"Latent field {x} is not in precision matrix form. Use MvNormal(tau=Q) instead."
         )

Original file line number	Diff line number	Diff line change
`@@ -157,7 +157,7 @@ def fit_INLA(`
`157`	`157`	`_, _, _, tau = x.owner.inputs`
`158`	`158`
`159`	`159`	`# Latent field should use precison rather than covariance`
`160`		`- if not tau.owner or tau.owner.op != matrix_inverse:`
	`160`	`+ if not (tau.owner and tau.owner.op == matrix_inverse):`
`161`	`161`	`raise ValueError(`
`162`	`162`	`f"Latent field {x} is not in precision matrix form. Use MvNormal(tau=Q) instead."`
`163`	`163`	`)`