Minor formatting fixes for python

Signed-off-by: Jeremy Johnson <jeremy.johnson@arm.com>
Change-Id: Iff6eb54734e7a78eb22d1a64803b937063b7f65a
diff --git a/verif/generator/tosa_test_gen.py b/verif/generator/tosa_test_gen.py
index 94edf6f..7e4cb1d 100644
--- a/verif/generator/tosa_test_gen.py
+++ b/verif/generator/tosa_test_gen.py
@@ -902,7 +902,9 @@
             if max(shape) < 64:
                 # padding must be less than the kernel size
                 bigPadding = bigKernel - 1
-                paddings.update({x for x in itertools.product(*([[0, bigPadding]] * 4))})
+                paddings.update(
+                    {x for x in itertools.product(*([[0, bigPadding]] * 4))}
+                )
 
         # There are too many parameter combinations, so generate them sparsely,
         # very sparse for negative tests