web3 ABI 无法在以太坊主网上获得合约所有权

Question

I'm working on python with web3 APIs. I'm trying to get the ownership of contract deployed on ethereum mainnet. The best code I could text was the following:

from web3 import Web3

eth = "https://mainnet.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161"
web3 = Web3(Web3.HTTPProvider(eth))

abi = '''[
    {
      "constant": true,
      "inputs": [],
      "name": "owner",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "type": "function"
    },
    {
      "inputs": [],
      "payable": false,
      "type": "constructor"
    }
]'''

contract = web3.eth.contract(address=Web3.toChecksumAddress("0x95aD61b0a150d79219dCF64E1E6Cc01f0B64C4cE"), abi=abi)
owner = contract.functions.owner().call()

print(owner)

But if I try to execute the code I get the following error:

web3.exceptions.ContractLogicError: execution reverted

Maybe ABI doesn't work for this RPC, or idk what occurs. Does somebody can help me? Thanks.

Answer 1

The queried contract ( source code ) doesn't have the owner() function (nor public property owner that would autogenerate the getter function).

When you're trying to call a non-existing function, the EVM then tries to call the fallback() ( docs ). But it's not there either, so the call fails.