Differential D10206 Diff 30211 test/functional/test_framework/script.py

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	#!/usr/bin/env python3			#!/usr/bin/env python3
	# Copyright (c) 2015-2019 The Bitcoin Core developers			# Copyright (c) 2015-2019 The Bitcoin Core developers
	# Distributed under the MIT software license, see the accompanying			# Distributed under the MIT software license, see the accompanying
	# file COPYING or http://www.opensource.org/licenses/mit-license.php.			# file COPYING or http://www.opensource.org/licenses/mit-license.php.
	"""Functionality to build scripts, as well as SignatureHash().			"""Functionality to build scripts, as well as SignatureHash().

	This file is modified from python-bitcoinlib.			This file is modified from python-bitcoinlib.
	"""			"""

	import hashlib			import hashlib
	import struct			import struct
	import unittest			import unittest
	from typing import List, Dict			from typing import Dict, List

	from .messages import (			from .messages import (
	CTransaction,			CTransaction,
	CTxOut,			CTxOut,
	hash256,			hash256,
	ser_string,			ser_string,
	ser_uint256,			ser_uint256,
	sha256,			sha256,
	uint256_from_str,			uint256_from_str,
	)			)


	MAX_SCRIPT_ELEMENT_SIZE = 520			MAX_SCRIPT_ELEMENT_SIZE = 520
	OPCODE_NAMES: Dict["CScriptOp", str] = {}			OPCODE_NAMES: Dict["CScriptOp", str] = {}


	def hash160(s):			def hash160(s):
	return hashlib.new('ripemd160', sha256(s)).digest()			return hashlib.new('ripemd160', sha256(s)).digest()


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