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firedrakeproject · Feb 15, 2025 · 6f6bca4 · 6f6bca4
1 parent 93f9ad8
commit 6f6bca4
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/ufl/tensors.py b/ufl/tensors.py
@@ -84,8 +84,10 @@ def sub(e, *indices):
             and all(sub(e, 0, 0) == sub(e0, 0, 0) for e in expressions[1:])
         ):
             indices = [sub(e, 0, 1).indices() for e in expressions]
-            if all(i[0] == k and all(isinstance(subindex, Index) for subindex in i[1:])
-                   for k, i in enumerate(indices)):
+            if all(
+                i[0] == k and all(isinstance(subindex, Index) for subindex in i[1:])
+                for k, i in enumerate(indices)
+            ):
                 return sub(e0, 0, 0)
 
         # Construct a new instance to be initialised