split statement to improve readability

Phys/FunctorCore/tests/options/test_vector_functors.py

@@ -53,11 +53,12 @@ def add_algorithm(type_suffix, eval_or_init, functors, producer=None):
     if not inside_cache_generation:
         kwargs["OutputLevel"] = DEBUG
 
-    algo_instance = algo_type(
+    configurable_algs, _ = algo_type(
         Functors=functors,
         PODFunctors={k: POD(v)
                      for k, v in functors.items()},
-        **kwargs).configuration().apply()[0][-1]
+        **kwargs).configuration().apply()
+    algo_instance = configurable_algs[-1]
     ApplicationMgr().TopAlg.append(algo_instance)