'PairCreated' has no attribute 'newFilter'

Hey everytime when i try to check if pair is created i get the error ‘PairCreated’ has no attribute ‘newFilter’

what am i doing wrong?

def main():
    event_filter = contract.events.PairCreated.newFilter(fromBlock='latest')
    #block_filter = web3.eth.filter('latest')
    # tx_filter = web3.eth.filter('pending')
    loop = asyncio.get_event_loop()
    try:
        loop.run_until_complete(
            asyncio.gather(
                log_loop(event_filter,2 )))
                # log_loop(block_filter, 2),
                # log_loop(tx_filter, 2)))
    finally:
        loop.close()