From cab8be5adfd57cc3ecd12b8dc09c9cfa809895d9 Mon Sep 17 00:00:00 2001 From: John Newbery Date: Fri, 20 Apr 2018 14:10:12 -0400 Subject: [PATCH] [tests] Fix flake8 warnings in blocktools.py --- test/functional/test_framework/blocktools.py | 59 +++++++++++++------- 1 file changed, 38 insertions(+), 21 deletions(-) diff --git a/test/functional/test_framework/blocktools.py b/test/functional/test_framework/blocktools.py index e6bb8d495b..2086241214 100644 --- a/test/functional/test_framework/blocktools.py +++ b/test/functional/test_framework/blocktools.py @@ -10,7 +10,24 @@ from .address import ( script_to_p2sh_p2wsh, script_to_p2wsh, ) -from .mininode import * +from .messages import ( + CBlock, + COIN, + COutPoint, + CTransaction, + CTxIn, + CTxInWitness, + CTxOut, + FromHex, + ToHex, + bytes_to_hex_str, + hash256, + hex_str_to_bytes, + ser_string, + ser_uint256, + sha256, + uint256_from_str, +) from .script import ( CScript, OP_0, @@ -24,15 +41,15 @@ from .script import ( from .util import assert_equal # Create a block (with regtest difficulty) -def create_block(hashprev, coinbase, nTime=None): +def create_block(hashprev, coinbase, ntime=None): block = CBlock() - if nTime is None: + if ntime is None: import time - block.nTime = int(time.time()+600) + block.nTime = int(time.time() + 600) else: - block.nTime = nTime + block.nTime = ntime block.hashPrevBlock = hashprev - block.nBits = 0x207fffff # difficulty retargeting is disabled in REGTEST chainparams + block.nBits = 0x207fffff # difficulty retargeting is disabled in REGTEST chainparams block.vtx.append(coinbase) block.hashMerkleRoot = block.calc_merkle_root() block.calc_sha256() @@ -43,7 +60,7 @@ WITNESS_COMMITMENT_HEADER = b"\xaa\x21\xa9\xed" def get_witness_script(witness_root, witness_nonce): - witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root)+ser_uint256(witness_nonce))) + witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root) + ser_uint256(witness_nonce))) output_data = WITNESS_COMMITMENT_HEADER + ser_uint256(witness_commitment) return CScript([OP_RETURN, output_data]) @@ -84,52 +101,52 @@ def serialize_script_num(value): # Create a coinbase transaction, assuming no miner fees. # If pubkey is passed in, the coinbase output will be a P2PK output; # otherwise an anyone-can-spend output. -def create_coinbase(height, pubkey = None): +def create_coinbase(height, pubkey=None): coinbase = CTransaction() coinbase.vin.append(CTxIn(COutPoint(0, 0xffffffff), - ser_string(serialize_script_num(height)), 0xffffffff)) + ser_string(serialize_script_num(height)), 0xffffffff)) coinbaseoutput = CTxOut() coinbaseoutput.nValue = 50 * COIN - halvings = int(height/150) # regtest + halvings = int(height / 150) # regtest coinbaseoutput.nValue >>= halvings - if (pubkey != None): + if (pubkey is not None): coinbaseoutput.scriptPubKey = CScript([pubkey, OP_CHECKSIG]) else: coinbaseoutput.scriptPubKey = CScript([OP_TRUE]) - coinbase.vout = [ coinbaseoutput ] + coinbase.vout = [coinbaseoutput] coinbase.calc_sha256() return coinbase # Create a transaction. -# If the scriptPubKey is not specified, make it anyone-can-spend. -def create_transaction(prevtx, n, sig, value, scriptPubKey=CScript()): +# If the script_pub_key is not specified, make it anyone-can-spend. +def create_transaction(prevtx, n, sig, value, script_pub_key=CScript()): tx = CTransaction() assert(n < len(prevtx.vout)) tx.vin.append(CTxIn(COutPoint(prevtx.sha256, n), sig, 0xffffffff)) - tx.vout.append(CTxOut(value, scriptPubKey)) + tx.vout.append(CTxOut(value, script_pub_key)) tx.calc_sha256() return tx -def get_legacy_sigopcount_block(block, fAccurate=True): +def get_legacy_sigopcount_block(block, accurate=True): count = 0 for tx in block.vtx: - count += get_legacy_sigopcount_tx(tx, fAccurate) + count += get_legacy_sigopcount_tx(tx, accurate) return count -def get_legacy_sigopcount_tx(tx, fAccurate=True): +def get_legacy_sigopcount_tx(tx, accurate=True): count = 0 for i in tx.vout: - count += i.scriptPubKey.GetSigOpCount(fAccurate) + count += i.scriptPubKey.GetSigOpCount(accurate) for j in tx.vin: # scriptSig might be of type bytes, so convert to CScript for the moment - count += CScript(j.scriptSig).GetSigOpCount(fAccurate) + count += CScript(j.scriptSig).GetSigOpCount(accurate) return count # Create a scriptPubKey corresponding to either a P2WPKH output for the # given pubkey, or a P2WSH output of a 1-of-1 multisig for the given # pubkey. Returns the hex encoding of the scriptPubKey. def witness_script(use_p2wsh, pubkey): - if (use_p2wsh == False): + if not use_p2wsh: # P2WPKH instead pubkeyhash = hash160(hex_str_to_bytes(pubkey)) pkscript = CScript([OP_0, pubkeyhash])