1 files changed, 18 insertions, 20 deletions
diff --git a/qa/rpc-tests/bip9-softforks.py b/qa/rpc-tests/bip9-softforks.py
index 69a10cc8b4..70d4be3f69 100755
--- a/qa/rpc-tests/bip9-softforks.py
+++ b/qa/rpc-tests/bip9-softforks.py
@@ -2,20 +2,8 @@
 # Copyright (c) 2015-2016 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test BIP 9 soft forks.
 
-from test_framework.blockstore import BlockStore
-from test_framework.test_framework import ComparisonTestFramework
-from test_framework.util import *
-from test_framework.mininode import CTransaction, NetworkThread
-from test_framework.blocktools import create_coinbase, create_block
-from test_framework.comptool import TestInstance, TestManager
-from test_framework.script import CScript, OP_1NEGATE, OP_CHECKSEQUENCEVERIFY, OP_DROP
-from io import BytesIO
-import time
-import itertools
-
-'''
-This test is meant to exercise BIP forks
 Connect to a single node.
 regtest lock-in with 108/144 block signalling
 activation after a further 144 blocks
@@ -26,8 +14,18 @@ mine 108 blocks signalling readiness and 36 blocks not signalling readiness (STA
 mine a further 143 blocks (LOCKED_IN)
 test that enforcement has not triggered (which triggers ACTIVE)
 test that enforcement has triggered
-'''
+"""
 
+from test_framework.blockstore import BlockStore
+from test_framework.test_framework import ComparisonTestFramework
+from test_framework.util import *
+from test_framework.mininode import CTransaction, NetworkThread
+from test_framework.blocktools import create_coinbase, create_block
+from test_framework.comptool import TestInstance, TestManager
+from test_framework.script import CScript, OP_1NEGATE, OP_CHECKSEQUENCEVERIFY, OP_DROP
+from io import BytesIO
+import time
+import itertools
 
 class BIP9SoftForksTest(ComparisonTestFramework):
 
@@ -225,21 +223,21 @@ class BIP9SoftForksTest(ComparisonTestFramework):
         return
 
     def csv_invalidate(self, tx):
-        '''Modify the signature in vin 0 of the tx to fail CSV
+        """Modify the signature in vin 0 of the tx to fail CSV
         Prepends -1 CSV DROP in the scriptSig itself.
-        '''
+        """
         tx.vin[0].scriptSig = CScript([OP_1NEGATE, OP_CHECKSEQUENCEVERIFY, OP_DROP] +
                                       list(CScript(tx.vin[0].scriptSig)))
 
     def sequence_lock_invalidate(self, tx):
-        '''Modify the nSequence to make it fails once sequence lock rule is activated (high timespan)
-        '''
+        """Modify the nSequence to make it fails once sequence lock rule is
+        activated (high timespan).
+        """
         tx.vin[0].nSequence = 0x00FFFFFF
         tx.nLockTime = 0
 
     def mtp_invalidate(self, tx):
-        '''Modify the nLockTime to make it fails once MTP rule is activated
-        '''
+        """Modify the nLockTime to make it fails once MTP rule is activated."""
         # Disable Sequence lock, Activate nLockTime
         tx.vin[0].nSequence = 0x90FFFFFF
         tx.nLockTime = self.last_block_time