diff --git a/tests/core/pyspec/eth2spec/test/altair/block_processing/test_process_sync_committee.py b/tests/core/pyspec/eth2spec/test/altair/block_processing/test_process_sync_committee.py
index 9b415cfbd..db2664b21 100644
--- a/tests/core/pyspec/eth2spec/test/altair/block_processing/test_process_sync_committee.py
+++ b/tests/core/pyspec/eth2spec/test/altair/block_processing/test_process_sync_committee.py
@@ -9,7 +9,6 @@ from eth2spec.test.helpers.state import (
     transition_to,
 )
 from eth2spec.test.helpers.constants import (
-    PHASE0,
     MAINNET, MINIMAL,
 )
 from eth2spec.test.helpers.sync_committee import (
diff --git a/tests/core/pyspec/eth2spec/test/altair/epoch_processing/test_process_sync_committee_updates.py b/tests/core/pyspec/eth2spec/test/altair/epoch_processing/test_process_sync_committee_updates.py
index c914c476d..c909c791c 100644
--- a/tests/core/pyspec/eth2spec/test/altair/epoch_processing/test_process_sync_committee_updates.py
+++ b/tests/core/pyspec/eth2spec/test/altair/epoch_processing/test_process_sync_committee_updates.py
@@ -8,10 +8,7 @@ from eth2spec.test.context import (
     single_phase,
     misc_balances,
 )
-from eth2spec.test.helpers.constants import (
-    PHASE0,
-    MINIMAL,
-)
+from eth2spec.test.helpers.constants import MINIMAL
 from eth2spec.test.helpers.state import transition_to
 from eth2spec.test.helpers.epoch_processing import (
     run_epoch_processing_with,
diff --git a/tests/core/pyspec/eth2spec/test/altair/unittests/validator/test_validator.py b/tests/core/pyspec/eth2spec/test/altair/unittests/validator/test_validator.py
index e1f5d3860..c8a894da6 100644
--- a/tests/core/pyspec/eth2spec/test/altair/unittests/validator/test_validator.py
+++ b/tests/core/pyspec/eth2spec/test/altair/unittests/validator/test_validator.py
@@ -7,7 +7,6 @@ from eth2spec.test.helpers.state import transition_to
 from eth2spec.utils import bls
 from eth2spec.utils.bls import only_with_bls
 from eth2spec.test.context import (
-    PHASE0,
     with_altair_and_later,
     with_state,
 )
diff --git a/tests/core/pyspec/eth2spec/test/helpers/execution_payload.py b/tests/core/pyspec/eth2spec/test/helpers/execution_payload.py
index 0d035350d..093b7cf2e 100644
--- a/tests/core/pyspec/eth2spec/test/helpers/execution_payload.py
+++ b/tests/core/pyspec/eth2spec/test/helpers/execution_payload.py
@@ -16,7 +16,7 @@ def build_empty_execution_payload(spec, state):
         gas_limit=latest.gas_limit,  # retain same limit
         gas_used=0,  # empty block, 0 gas
         timestamp=timestamp,
-        receipt_root=b"no receipts here" + b"\x00"*16,  # TODO: root of empty MPT may be better.
+        receipt_root=b"no receipts here" + b"\x00" * 16,  # TODO: root of empty MPT may be better.
         logs_bloom=spec.ByteVector[spec.BYTES_PER_LOGS_BLOOM](),  # TODO: zeroed logs bloom for empty logs ok?
         transactions=empty_txs,
     )
diff --git a/tests/core/pyspec/eth2spec/test/merge/block_processing/test_process_execution_payload.py b/tests/core/pyspec/eth2spec/test/merge/block_processing/test_process_execution_payload.py
index acb88b944..d45a2689b 100644
--- a/tests/core/pyspec/eth2spec/test/merge/block_processing/test_process_execution_payload.py
+++ b/tests/core/pyspec/eth2spec/test/merge/block_processing/test_process_execution_payload.py
@@ -1,7 +1,8 @@
 from eth2spec.test.helpers.execution_payload import build_empty_execution_payload
-from eth2spec.test.context import spec_state_test, expect_assertion_error, always_bls, with_merge_and_later
+from eth2spec.test.context import spec_state_test, expect_assertion_error, with_merge_and_later
 from eth2spec.test.helpers.state import next_slot
 
+
 def run_execution_payload_processing(spec, state, execution_payload, valid=True, execution_valid=True):
     """
     Run ``process_execution_payload``, yielding:
@@ -37,4 +38,3 @@ def test_success_first_payload(spec, state):
     execution_payload = build_empty_execution_payload(spec, state)
 
     yield from run_execution_payload_processing(spec, state, execution_payload)
-