diff --git a/test/functional/abc-get-invalid-block.py b/test/functional/abc-get-invalid-block.py
--- a/test/functional/abc-get-invalid-block.py
+++ b/test/functional/abc-get-invalid-block.py
@@ -5,14 +5,14 @@
 """Test requesting invalid blocks behaves safely."""
 
 from test_framework.messages import (
+    MSG_BLOCK,
+    MSG_CMPCT_BLOCK,
     CInv,
     msg_getblocks,
     msg_getdata,
     msg_getheaders,
-    MSG_BLOCK,
-    MSG_CMPCT_BLOCK,
 )
-from test_framework.p2p import p2p_lock, P2PInterface
+from test_framework.p2p import P2PInterface, p2p_lock
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 
diff --git a/test/functional/abc-invalid-chains.py b/test/functional/abc-invalid-chains.py
--- a/test/functional/abc-invalid-chains.py
+++ b/test/functional/abc-invalid-chains.py
@@ -5,13 +5,10 @@
 
 import time
 
-from test_framework.test_framework import BitcoinTestFramework
+from test_framework.blocktools import create_block, create_coinbase
 from test_framework.p2p import P2PDataStore
+from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
-from test_framework.blocktools import (
-    create_block,
-    create_coinbase,
-)
 
 
 class InvalidChainsTest(BitcoinTestFramework):
diff --git a/test/functional/abc-invalid-message.py b/test/functional/abc-invalid-message.py
--- a/test/functional/abc-invalid-message.py
+++ b/test/functional/abc-invalid-message.py
@@ -11,10 +11,7 @@
 import struct
 
 from test_framework.messages import NODE_NETWORK, msg_version
-from test_framework.p2p import (
-    msg_ping,
-    P2PInterface,
-)
+from test_framework.p2p import P2PInterface, msg_ping
 from test_framework.test_framework import BitcoinTestFramework
 
 
diff --git a/test/functional/abc-mempool-coherence-on-activations.py b/test/functional/abc-mempool-coherence-on-activations.py
--- a/test/functional/abc-mempool-coherence-on-activations.py
+++ b/test/functional/abc-mempool-coherence-on-activations.py
@@ -36,17 +36,16 @@
 )
 from test_framework.p2p import P2PDataStore
 from test_framework.script import (
-    CScript,
     OP_CHECKSIG,
     OP_TRUE,
     SIGHASH_ALL,
     SIGHASH_FORKID,
+    CScript,
     SignatureHashForkId,
 )
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_raises_rpc_error
 
-
 # ---Code specific to the activation used for this test---
 
 # It might change depending on the activation code currently existing in the
diff --git a/test/functional/abc-minimaldata.py b/test/functional/abc-minimaldata.py
--- a/test/functional/abc-minimaldata.py
+++ b/test/functional/abc-minimaldata.py
@@ -27,14 +27,8 @@
     FromHex,
     ToHex,
 )
-from test_framework.p2p import (
-    P2PDataStore,
-)
-from test_framework.script import (
-    CScript,
-    OP_ADD,
-    OP_TRUE,
-)
+from test_framework.p2p import P2PDataStore
+from test_framework.script import OP_ADD, OP_TRUE, CScript
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.txtools import pad_tx
 from test_framework.util import assert_raises_rpc_error
diff --git a/test/functional/abc-parkedchain.py b/test/functional/abc-parkedchain.py
--- a/test/functional/abc-parkedchain.py
+++ b/test/functional/abc-parkedchain.py
@@ -5,10 +5,7 @@
 """Test the parckblock and unparkblock RPC calls."""
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (
-    assert_equal,
-    connect_nodes,
-)
+from test_framework.util import assert_equal, connect_nodes
 
 
 class ParkedChainTest(BitcoinTestFramework):
diff --git a/test/functional/abc-replay-protection.py b/test/functional/abc-replay-protection.py
--- a/test/functional/abc-replay-protection.py
+++ b/test/functional/abc-replay-protection.py
@@ -28,11 +28,11 @@
 )
 from test_framework.p2p import P2PDataStore
 from test_framework.script import (
-    CScript,
     OP_CHECKSIG,
     OP_TRUE,
     SIGHASH_ALL,
     SIGHASH_FORKID,
+    CScript,
     SignatureHashForkId,
 )
 from test_framework.test_framework import BitcoinTestFramework
diff --git a/test/functional/abc-schnorr.py b/test/functional/abc-schnorr.py
--- a/test/functional/abc-schnorr.py
+++ b/test/functional/abc-schnorr.py
@@ -26,17 +26,15 @@
     FromHex,
     ToHex,
 )
-from test_framework.p2p import (
-    P2PDataStore,
-)
+from test_framework.p2p import P2PDataStore
 from test_framework.script import (
-    CScript,
     OP_1,
     OP_CHECKMULTISIG,
     OP_CHECKSIG,
     OP_TRUE,
     SIGHASH_ALL,
     SIGHASH_FORKID,
+    CScript,
     SignatureHashForkId,
 )
 from test_framework.test_framework import BitcoinTestFramework
diff --git a/test/functional/abc-schnorrmultisig.py b/test/functional/abc-schnorrmultisig.py
--- a/test/functional/abc-schnorrmultisig.py
+++ b/test/functional/abc-schnorrmultisig.py
@@ -29,23 +29,20 @@
     FromHex,
     ToHex,
 )
-from test_framework.p2p import (
-    P2PDataStore,
-)
+from test_framework.p2p import P2PDataStore
 from test_framework.script import (
-    CScript,
     OP_0,
     OP_1,
     OP_CHECKMULTISIG,
     OP_TRUE,
     SIGHASH_ALL,
     SIGHASH_FORKID,
+    CScript,
     SignatureHashForkId,
 )
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_raises_rpc_error
 
-
 # ECDSA checkmultisig with non-null dummy are invalid since the new mode
 # refuses ECDSA.
 ECDSA_NULLDUMMY_ERROR = 'mandatory-script-verify-flag-failed (Only Schnorr signatures allowed in this operation)'
diff --git a/test/functional/abc-segwit-recovery.py b/test/functional/abc-segwit-recovery.py
--- a/test/functional/abc-segwit-recovery.py
+++ b/test/functional/abc-segwit-recovery.py
@@ -23,20 +23,16 @@
     CTxOut,
     ToHex,
 )
-from test_framework.p2p import (
-    P2PDataStore,
-)
+from test_framework.p2p import P2PDataStore
 from test_framework.script import (
-    CScript,
-    hash160,
     OP_EQUAL,
     OP_HASH160,
     OP_TRUE,
+    CScript,
+    hash160,
 )
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (
-    assert_raises_rpc_error,
-)
+from test_framework.util import assert_raises_rpc_error
 
 TEST_TIME = int(time.time())
 
diff --git a/test/functional/abc-sync-chain.py b/test/functional/abc-sync-chain.py
--- a/test/functional/abc-sync-chain.py
+++ b/test/functional/abc-sync-chain.py
@@ -16,7 +16,6 @@
 from test_framework.p2p import P2PInterface
 from test_framework.test_framework import BitcoinTestFramework
 
-
 NUM_IBD_BLOCKS = 50
 
 
diff --git a/test/functional/abc-transaction-ordering.py b/test/functional/abc-transaction-ordering.py
--- a/test/functional/abc-transaction-ordering.py
+++ b/test/functional/abc-transaction-ordering.py
@@ -7,27 +7,18 @@
 non topological order once the feature is activated.
 """
 
-from collections import deque
 import random
 import time
+from collections import deque
 
 from test_framework.blocktools import (
     create_block,
     create_coinbase,
     make_conform_to_ctor,
 )
-from test_framework.messages import (
-    COutPoint,
-    CTransaction,
-    CTxIn,
-    CTxOut,
-)
+from test_framework.messages import COutPoint, CTransaction, CTxIn, CTxOut
 from test_framework.p2p import P2PDataStore
-from test_framework.script import (
-    CScript,
-    OP_RETURN,
-    OP_TRUE,
-)
+from test_framework.script import OP_RETURN, OP_TRUE, CScript
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 
diff --git a/test/functional/abc_feature_minerfund.py b/test/functional/abc_feature_minerfund.py
--- a/test/functional/abc_feature_minerfund.py
+++ b/test/functional/abc_feature_minerfund.py
@@ -3,18 +3,12 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-from test_framework.blocktools import (
-    create_block,
-    create_coinbase,
-)
+from decimal import Decimal
+
+from test_framework.blocktools import create_block, create_coinbase
 from test_framework.messages import ToHex
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (
-    assert_equal,
-    assert_greater_than_or_equal,
-)
-
-from decimal import Decimal
+from test_framework.util import assert_equal, assert_greater_than_or_equal
 
 AXION_ACTIVATION_TIME = 2000000600
 
diff --git a/test/functional/abc_mining_basic.py b/test/functional/abc_mining_basic.py
--- a/test/functional/abc_mining_basic.py
+++ b/test/functional/abc_mining_basic.py
@@ -6,13 +6,13 @@
 Tests for Bitcoin ABC mining RPCs
 """
 
+from decimal import Decimal
+
 from test_framework.cdefs import (
     BLOCK_MAXBYTES_MAXSIGCHECKS_RATIO,
     DEFAULT_MAX_BLOCK_SIZE,
 )
-from test_framework.messages import (
-    XEC,
-)
+from test_framework.messages import XEC
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
@@ -20,8 +20,6 @@
     connect_nodes,
 )
 
-from decimal import Decimal
-
 AXION_ACTIVATION_TIME = 2000000600
 MINER_FUND_ADDR = 'ecregtest:pqnqv9lt7e5vjyp0w88zf2af0l92l8rxdgz0wv9ltl'
 MINER_FUND_LEGACY_ADDR = '2MviGxxFciGeWTgkUgYgjqehWt18c4ZsShd'
diff --git a/test/functional/abc_p2p_avalanche_peer_discovery.py b/test/functional/abc_p2p_avalanche_peer_discovery.py
--- a/test/functional/abc_p2p_avalanche_peer_discovery.py
+++ b/test/functional/abc_p2p_avalanche_peer_discovery.py
@@ -12,24 +12,21 @@
 
 from test_framework.address import ADDRESS_ECREG_UNSPENDABLE
 from test_framework.avatools import (
-    get_ava_p2p_interface,
     create_coinbase_stakes,
+    get_ava_p2p_interface,
     get_proof_ids,
 )
-from test_framework.key import (
-    ECKey,
-    ECPubKey,
-)
-from test_framework.p2p import p2p_lock
+from test_framework.key import ECKey, ECPubKey
 from test_framework.messages import (
+    MSG_AVA_PROOF,
+    NODE_AVALANCHE,
+    NODE_NETWORK,
     AvalancheProof,
     CInv,
     FromHex,
-    MSG_AVA_PROOF,
     msg_getdata,
-    NODE_AVALANCHE,
-    NODE_NETWORK,
 )
+from test_framework.p2p import p2p_lock
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 from test_framework.wallet_util import bytes_to_wif
diff --git a/test/functional/abc_p2p_avalanche_voting.py b/test/functional/abc_p2p_avalanche_voting.py
--- a/test/functional/abc_p2p_avalanche_voting.py
+++ b/test/functional/abc_p2p_avalanche_voting.py
@@ -6,13 +6,10 @@
 import random
 
 from test_framework.avatools import (
-    get_ava_p2p_interface,
     create_coinbase_stakes,
+    get_ava_p2p_interface,
 )
-from test_framework.key import (
-    ECKey,
-    ECPubKey,
-)
+from test_framework.key import ECKey, ECPubKey
 from test_framework.messages import AvalancheVote
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
diff --git a/test/functional/abc_p2p_compactblocks.py b/test/functional/abc_p2p_compactblocks.py
--- a/test/functional/abc_p2p_compactblocks.py
+++ b/test/functional/abc_p2p_compactblocks.py
@@ -11,9 +11,9 @@
 (e.g. sigops limits).
 """
 
-from collections import deque
 import random
 import time
+from collections import deque
 
 from test_framework.blocktools import (
     create_block,
@@ -32,12 +32,8 @@
     msg_sendcmpct,
     ser_compact_size,
 )
-from test_framework.p2p import (
-    p2p_lock,
-    P2PDataStore,
-    P2PInterface,
-)
-from test_framework.script import CScript, OP_RETURN, OP_TRUE
+from test_framework.p2p import P2PDataStore, P2PInterface, p2p_lock
+from test_framework.script import OP_RETURN, OP_TRUE, CScript
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.txtools import pad_tx
 from test_framework.util import assert_equal
diff --git a/test/functional/abc_p2p_fullblocktest.py b/test/functional/abc_p2p_fullblocktest.py
--- a/test/functional/abc_p2p_fullblocktest.py
+++ b/test/functional/abc_p2p_fullblocktest.py
@@ -11,9 +11,9 @@
 (e.g. sigops limits).
 """
 
-from collections import deque
 import random
 import time
+from collections import deque
 
 from test_framework.blocktools import (
     create_block,
@@ -21,23 +21,17 @@
     create_tx_with_script,
     make_conform_to_ctor,
 )
-from test_framework.cdefs import (
-    ONE_MEGABYTE,
-)
+from test_framework.cdefs import ONE_MEGABYTE
 from test_framework.messages import (
     COutPoint,
     CTransaction,
     CTxIn,
     CTxOut,
-    ser_compact_size,
     ToHex,
+    ser_compact_size,
 )
 from test_framework.p2p import P2PDataStore
-from test_framework.script import (
-    CScript,
-    OP_RETURN,
-    OP_TRUE,
-)
+from test_framework.script import OP_RETURN, OP_TRUE, CScript
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 
diff --git a/test/functional/abc_p2p_proof_inventory.py b/test/functional/abc_p2p_proof_inventory.py
--- a/test/functional/abc_p2p_proof_inventory.py
+++ b/test/functional/abc_p2p_proof_inventory.py
@@ -6,26 +6,21 @@
 Test proof inventory relaying
 """
 
-from test_framework.avatools import (
-    gen_proof,
-    get_proof_ids,
-    wait_for_proof,
-)
+import time
+
 from test_framework.address import ADDRESS_ECREG_UNSPENDABLE
+from test_framework.avatools import gen_proof, get_proof_ids, wait_for_proof
 from test_framework.key import ECKey
 from test_framework.messages import (
+    MSG_AVA_PROOF,
+    MSG_TYPE_MASK,
     AvalancheProof,
     CInv,
     FromHex,
-    MSG_AVA_PROOF,
-    MSG_TYPE_MASK,
     msg_avaproof,
     msg_getdata,
 )
-from test_framework.p2p import (
-    P2PInterface,
-    p2p_lock,
-)
+from test_framework.p2p import P2PInterface, p2p_lock
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
@@ -34,8 +29,6 @@
 )
 from test_framework.wallet_util import bytes_to_wif
 
-import time
-
 # Broadcast reattempt occurs every 10 to 15 minutes
 MAX_INITIAL_BROADCAST_DELAY = 15 * 60
 # Delay to allow the node to respond to getdata requests
diff --git a/test/functional/abc_rpc_addavalanchenode.py b/test/functional/abc_rpc_addavalanchenode.py
--- a/test/functional/abc_rpc_addavalanchenode.py
+++ b/test/functional/abc_rpc_addavalanchenode.py
@@ -16,9 +16,7 @@
 )
 from test_framework.p2p import P2PInterface
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (
-    assert_raises_rpc_error,
-)
+from test_framework.util import assert_raises_rpc_error
 from test_framework.wallet_util import bytes_to_wif
 
 
diff --git a/test/functional/abc_rpc_avalancheproof.py b/test/functional/abc_rpc_avalancheproof.py
--- a/test/functional/abc_rpc_avalancheproof.py
+++ b/test/functional/abc_rpc_avalancheproof.py
@@ -26,8 +26,8 @@
 from test_framework.util import (
     append_config,
     assert_equal,
-    connect_nodes,
     assert_raises_rpc_error,
+    connect_nodes,
 )
 from test_framework.wallet_util import bytes_to_wif
 
diff --git a/test/functional/abc_rpc_buildavalancheproof.py b/test/functional/abc_rpc_buildavalancheproof.py
--- a/test/functional/abc_rpc_buildavalancheproof.py
+++ b/test/functional/abc_rpc_buildavalancheproof.py
@@ -8,9 +8,7 @@
 from test_framework.avatools import create_coinbase_stakes
 from test_framework.key import ECKey
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (
-    assert_raises_rpc_error,
-)
+from test_framework.util import assert_raises_rpc_error
 from test_framework.wallet_util import bytes_to_wif
 
 
diff --git a/test/functional/abc_rpc_getavalanchepeerinfo.py b/test/functional/abc_rpc_getavalanchepeerinfo.py
--- a/test/functional/abc_rpc_getavalanchepeerinfo.py
+++ b/test/functional/abc_rpc_getavalanchepeerinfo.py
@@ -4,8 +4,8 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the getavalanchepeerinfo RPC."""
 from test_framework.avatools import (
-    get_ava_p2p_interface,
     create_coinbase_stakes,
+    get_ava_p2p_interface,
 )
 from test_framework.key import ECKey
 from test_framework.test_framework import BitcoinTestFramework
diff --git a/test/functional/abc_wallet_dumpcoins.py b/test/functional/abc_wallet_dumpcoins.py
--- a/test/functional/abc_wallet_dumpcoins.py
+++ b/test/functional/abc_wallet_dumpcoins.py
@@ -6,11 +6,11 @@
 Test the dumpcoins RPCs call.
 """
 
+from decimal import Decimal
+
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal
 
-from decimal import Decimal
-
 
 class DumpCoinsTest(BitcoinTestFramework):
     def set_test_params(self):
diff --git a/test/functional/abc_wallet_standardness.py b/test/functional/abc_wallet_standardness.py
--- a/test/functional/abc_wallet_standardness.py
+++ b/test/functional/abc_wallet_standardness.py
@@ -6,29 +6,22 @@
 that it might try to spend."""
 
 from decimal import Decimal
-from test_framework.messages import (
-    CTransaction,
-    CTxOut,
-    FromHex,
-    ToHex,
-)
+
+from test_framework.messages import CTransaction, CTxOut, FromHex, ToHex
 from test_framework.script import (
-    CScript,
     OP_1,
     OP_5,
-    OP_CHECKSIG,
     OP_CHECKMULTISIG,
+    OP_CHECKSIG,
     OP_DUP,
     OP_EQUALVERIFY,
     OP_HASH160,
     OP_PUSHDATA1,
+    CScript,
     hash160,
 )
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import (
-    assert_raises_rpc_error,
-    assert_equal,
-)
+from test_framework.util import assert_equal, assert_raises_rpc_error
 
 SATOSHI = Decimal('0.01')