diff --git a/tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py b/tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py
index 10772ca82..ee1a751d2 100644
--- a/tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py
+++ b/tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py
@@ -215,7 +215,8 @@ def test_almost_empty_attestations_with_leak(spec, state):
 @spec_state_test
 def test_random_fill_attestations(spec, state):
     rng = Random(4567)
-    yield from run_with_participation(spec, state, lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) // 3))
+    yield from run_with_participation(spec, state,
+                                      lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) // 3))
 
 
 @with_all_phases
@@ -223,14 +224,16 @@ def test_random_fill_attestations(spec, state):
 @leaking()
 def test_random_fill_attestations_with_leak(spec, state):
     rng = Random(4567)
-    yield from run_with_participation(spec, state, lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) // 3))
+    yield from run_with_participation(spec, state,
+                                      lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) // 3))
 
 
 @with_all_phases
 @spec_state_test
 def test_almost_full_attestations(spec, state):
     rng = Random(8901)
-    yield from run_with_participation(spec, state, lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) - 1))
+    yield from run_with_participation(spec, state,
+                                      lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) - 1))
 
 
 @with_all_phases
@@ -238,7 +241,8 @@ def test_almost_full_attestations(spec, state):
 @leaking()
 def test_almost_full_attestations_with_leak(spec, state):
     rng = Random(8901)
-    yield from run_with_participation(spec, state, lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) - 1))
+    yield from run_with_participation(spec, state,
+                                      lambda slot, comm_index, comm: rng.sample(sorted(comm), len(comm) - 1))
 
 
 @with_all_phases