通过 python3 计算煎饼对地址

Question

这个问题与Compute uniswap pair address via python

很相关

我正在尝试做同样的事情，但用于 panckage swap v2。

我以 CAKE/WBNB 对为例：

CONTRACTS = {
    "CAKE": "0x0E09FaBB73Bd3Ade0a17ECC321fD13a19e81cE82",
}

PANCAKE_SWAP_FACTORY = "0xcA143Ce32Fe78f1f7019d7d551a6402fC5350c73"
PANCAKE_SWAP_ROUTER  = "0x10ED43C718714eb63d5aA57B78B54704E256024E"

WBNB_ADDRESS = "0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c"

hexadem_ ='0x00fb7f630766e6a796048ea87d01acd3068e8ff67d078148a3fa3f4a84f69bd5'
factory = PANCAKE_SWAP_FACTORY
abiEncoded_1 = encode_abi_packed(['address', 'address'], (CONTRACTS['CAKE'], WBNB_ADDRESS))
salt_ = pancakeswap.w3.solidityKeccak(['bytes'], ['0x' +abiEncoded_1.hex()])
abiEncoded_2 = encode_abi_packed([ 'address', 'bytes32'], ( factory, salt_))

resPair = pancakeswap.w3.solidityKeccak(['bytes','bytes'], ['0xff' + abiEncoded_2.hex(), hexadem_])[12:]

# resPair is the address for the pancakeswap CAKE/WBNB pair
print(resPair.hex())
print('0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6')
print(resPair.hex() == '0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6')
print()

我的第一个问题是代码不工作，它没有生成正确的合约地址，实际上它打印：

0x0ed7e52944161450477ee417de9cd3a859b14fd0
0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6
False

我认为问题出在常量hexadem_的值上，可以在：

hexadem_ = '0xd0d4c4cd0848c93cb4fd1f498d7013ee6bfb25783ea21593d5834f5d250ece66' # 来自 https://github.com/pancakeswap/pancake-swap-periphery/blob/master/contracts/libraries/PancakeLibrary.sol
hexadem_ ='0x96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f' # 来自 uniswap（很可能是错误的...）
hexadem_ ='0x00fb7f630766e6a796048ea87d01acd3068e8ff67d078148a3fa3f4a84f69bd5' # 来自 https://bscscan.com/address/0x10ED43C718714eb63d5aA57B78B54704E256024E#code 行 298

Answer 1

您获取的地址是正确的。您尝试匹配的地址是 pancake V1。您可以通过单击 2 个地址的“contract creator”来查看，您将看到 0x0ed7e52944161450477ee417de9cd3a859b14fd0 和 0xA527a61703D82139F8a06Bc30097cC9CAA2df5A6 的 pancake 工厂版本。

通过 python3 计算煎饼对地址

Compute pancake pair address via python3

python-3.x

hex

solidity

binance-smart-chain