def get_dtc(self): """Returns a list of all pending DTC codes. Each element consists of a 2-tuple: (DTC code (string), Code description (string) )""" dtcLetters = ["P", "C", "B", "U"] r = self.sensor(1)[1] #data dtcNumber = r[0] mil = r[1] DTCCodes = [] print "Number of stored DTC:" + str(dtcNumber) + " MIL: " + str(mil) # get all DTC, 3 per mesg response for i in range(0, ((dtcNumber+2)/3)): self.send(GET_DTC_COMMAND) res = self.get() print "DTC result:" + res for i in range(0, 3): val1 = unhex(res[3+i*6:5+i*6]) val2 = unhex(res[6+i*6:8+i*6]) #get DTC codes from response (3 DTC each 2 bytes) val = (val1<<8)+val2 #DTC val as int if val==0: #skip fill of last packet break DTCStr=dtcLetters[(val&0xC000)>14]+str((val&0x3000)>>12)+str((val&0x0f00)>>8)+str((val&0x00f0)>>4)+str(val&0x000f) DTCCodes.append(["Active",DTCStr]) #read mode 7 self.send(GET_FREEZE_DTC_COMMAND) res = self.get() if res[:7] == "NODATA": #no freeze frame return DTCCodes print "DTC freeze result:" + res for i in range(0, 3): val1 = unhex(res[3+i*6:5+i*6]) val2 = unhex(res[6+i*6:8+i*6]) #get DTC codes from response (3 DTC each 2 bytes) val = (val1<<8)+val2 #DTC val as int if val==0: #skip fill of last packet break DTCStr=dtcLetters[(val&0xC000)>14]+str((val&0x3000)>>12)+str((val&0x0f00)>>8)+str((val&0x00f0)>>4)+str(val&0x000f) DTCCodes.append(["Passive",DTCStr]) return DTCCodes
def transaction_count(self, address=None, defaultBlock='latest'):
if address is None:
address = self.address
params = [str(address), defaultBlock]
try:
hexcount = self._rpc_post('eth_getTransactionCount', params)
if hexcount is not None:
count = unhex(hexcount)
else:
return None
logger.debug("Tx count: %s" % count)
except Exception as e:
logger.info("Failed Tx count, returning None: %s" % e)
count = None
return count
def transaction_count(self, address=None, defaultBlock='latest'):
if address is None:
address = self.address
params = [str(address), defaultBlock]
try:
hexcount = self._rpc_post('eth_getTransactionCount', params)
if hexcount is not None:
count = unhex(hexcount)
else:
return None
logger.debug("Tx count: %s" % count)
except Exception as e:
logger.info("Failed Tx count, returning None: %s" % e)
count = None
return count
def abi_data(sig, data):
prefix = get_prefix(sig)
data_abi = hex2(prefix).rstrip('L')
logger.debug("ABI prefix: %s" % data_abi)
types = sig.split(':')[1][1:-1].split(',')
logger.debug("ABI types: %s" % types)
for i, s in enumerate(data):
if isinstance(data[i], (str, unicode)) and data[i][:2] == "0x":
data[i] = unhex(data[i])
logger.debug("ABI data: %s" % data)
data_abi += abi.encode_abi(types, data).encode('hex')
logger.debug("ABI encoded: %s" % data_abi)
return data_abi
def abi_data(sig, data):
prefix = get_prefix(sig)
data_abi = hex(prefix).rstrip('L')
logger.debug("ABI prefix: %s" % data_abi)
types = sig.split(':')[1][1:-1].split(',')
logger.debug("ABI types: %s" % types)
for i, s in enumerate(data):
if isinstance(data[i], (str, unicode)) and data[i][:2] == "0x":
data[i] = unhex(data[i])
logger.debug("ABI data: %s" % data)
data_abi += abi.encode_abi(types, data).encode('hex')
logger.debug("ABI encoded: %s" % data_abi)
return data_abi
def abi_data(fun_name, sig, data):
types = []
prefix = get_prefix(fun_name, sig)
data_abi = hex(prefix).rstrip('L')
for i, s in enumerate(sig):
if s == 's':
types.append('string')
elif s == 'a':
types.append('int256[]')
else:
if isinstance(data[i], (str, unicode)) and data[i][:2] == "0x":
data[i] = unhex(data[i])
types.append('int256')
data_abi += abi.encode_abi(types, data).encode('hex')
logger.debug("ABI data: %s" % data_abi)
return data_abi
def abi_data(fun_name, sig, data):
types = []
prefix = get_prefix(fun_name, sig)
data_abi = hex(prefix).rstrip('L')
for i, s in enumerate(sig):
if s == 's':
types.append('string')
elif s == 'a':
types.append('int256[]')
else:
if isinstance(data[i], (str, unicode)) and data[i][:2] == "0x":
data[i] = unhex(data[i])
types.append('int256')
data_abi += abi.encode_abi(types, data).encode('hex')
logger.debug("ABI data: %s" % data_abi)
return data_abi
def peer_count(self):
return unhex(self._rpc_post('net_peerCount', None))
def number(self):
return unhex(self._rpc_post('eth_blockNumber', None))
def is_contract_at(self, address, defaultBlock='latest'):
params = [address, defaultBlock]
result = self._rpc_post('eth_getCode', params)
if result is not None:
return unhex(result) != 0
return True
def gasprice(self):
result = self._rpc_post('eth_gasPrice', None)
logger.debug("Got gas price: %s" % result)
if result is not None:
return unhex(result)
return None
def peer_count(self):
return unhex(self._rpc_post('net_peerCount', None))
def number(self):
return unhex(self._rpc_post('eth_blockNumber', None))
def is_contract_at(self, address, defaultBlock='latest'):
params = [address, defaultBlock]
result = self._rpc_post('eth_getCode', params)
if result is not None:
return unhex(result) != 0
return False
def gasprice(self):
result = self._rpc_post('eth_gasPrice', None)
logger.debug("Got gas price: %s" % result)
if result is not None:
return unhex(result)
return None
def balance_at(self, address, defaultBlock='latest'):
params = [address, defaultBlock]
balance = self._rpc_post('eth_getBalance', params)
if balance is not None:
return unhex(balance)
return 0
def balance_at(self, address, defaultBlock='latest'):
params = [address, defaultBlock]
balance = self._rpc_post('eth_getBalance', params)
if balance is not None:
return unhex(balance)
return 0