github.com/pdaian/flashboys2@v0.0.0-20190718175736-b101c35361f0/gastoken.py (about) 1 from web3 import Web3 2 import os, binascii 3 4 my_provider = Web3.IPCProvider('/home/geth/parity_mainnet/jsonrpc.ipc') 5 w3 = Web3(my_provider) 6 7 8 def is_using_gastoken(hash): 9 while True: 10 try: 11 trace = w3.parity.traceReplayTransaction(hash,mode=["vmTrace"]) 12 break 13 except Exception as e: 14 print(e) 15 zerostores = 0 16 if trace['vmTrace'] is None or trace['vmTrace']['ops'] is None: 17 return -1 18 for op in trace['vmTrace']['ops']: 19 if op['ex'] is None or op['ex']['store'] is None: 20 continue 21 storeop = op['ex']['store'] 22 if storeop is not None and storeop['val'] == '0x0': 23 zerostores += 1 24 return (zerostores) 25 26