I have already created contract and deployed to ethereum mainnet. Now I wanna read logs. But I can't as calling print(contract_instance.address)
and contract_instance.eventFilter('Transfers')
show me error log. What am I doing wrong?
import web3
from web3 import Web3, KeepAliveRPCProvider, IPCProvider
from web3.contract import ConciseContract
from solc import compile_source
ADDRESS = "..."
START_BLOCK = 4551217
END_BLOCK = 4599662
contract_source_code = '''...
'''
compiled_sol = compile_source(contract_source_code) # Compiled source code
contract_interface = compiled_sol['<stdin>:CustomToken']
web3 = Web3(KeepAliveRPCProvider(host='...', port='8545'))
contract_instance = web3.eth.contract(contract_interface['abi'], ADDRESS, ContractFactoryClass=ConciseContract)
print(contract_instance.address)
transfer_filter = contract_instance.eventFilter('Transfers')
Error logs:
Traceback (most recent call last):
File "analysis.py", line 488, in <module>
print(contract_instance.creator())
File "/usr/local/lib/python3.6/site-packages/web3/contract.py", line 803, in __call__
return self.__prepared_function(**kwargs)(*args)
File "/usr/local/lib/python3.6/site-packages/web3/contract.py", line 832, in call_contract_function
transaction=transaction,
File "/usr/local/lib/python3.6/site-packages/web3/utils/decorators.py", line 13, in _wrapper
return self.method(obj, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/web3/contract.py", line 692, in _prepare_transaction
fn_kwargs,
File "/usr/local/lib/python3.6/site-packages/eth_utils/string.py", line 85, in inner
return force_obj_to_text(fn(*args, **kwargs))
File "/usr/local/lib/python3.6/site-packages/web3/contract.py", line 731, in _encode_transaction_data
fn_name, args, kwargs,
File "/usr/local/lib/python3.6/site-packages/web3/contract.py", line 660, in _get_function_info
fn_abi = cls._find_matching_fn_abi(fn_name, args, kwargs)
File "/usr/local/lib/python3.6/site-packages/web3/contract.py", line 624, in _find_matching_fn_abi
raise ValueError("No matching functions found")
ValueError: No matching functions found