Merge pull request #119 from ecmwf/feature/more_explicit_error

Feature/more explicit error
ecmwf · Mar 4, 2024 · 00f0161 · 00f0161
2 parents 522de07 + d9e1823
commit 00f0161
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/polytope/engine/hullslicer.py b/polytope/engine/hullslicer.py
@@ -58,7 +58,11 @@ def _build_unsliceable_child(self, polytope, ax, node, datacube, lower, next_nod
             next_nodes.append(child)
         else:
             # raise a value not found error
-            raise ValueError()
+            errmsg = (
+                f"Datacube does not have expected index {lower} of type {type(lower)}"
+                f"on {ax.name} along the path {path}"
+            )
+            raise ValueError(errmsg)
 
     def _build_sliceable_child(self, polytope, ax, node, datacube, lower, upper, next_nodes, slice_axis_idx):
         tol = ax.tol