Calling multiple prices simultaneously

[DenymW]

Hi all,
Currently trying to set up a call to get prices for multiple stocks at once. currently the client is being passed an inputArray of [[stockID, stockContract], [etc,etc]] where the stock ID is the tickID to be used for the given contract.

code:
def get_IB_market_data(self, inputArray, seconds = 5)
marketData = []
for tickID, contract in inputArray:
self.cb.init_tickdata(tickID)
self.cb.init_error()

  for tickID, contract in inputArray:
      self.tws.reqMktData(tickID, contract, "", False)
 start_time = time.time
 finished = False
 iserror = False
 while not finished andnot iserror:
       iserror = self.cb.flagh_iserror
       if (time.time() - start_time) > seconds:
            finished = True
       pass
  for tickID, contract in inputArray:
        self.tws.cancelMktData(tickID)
        marketData.append([tickID, self.cb.data_tickdata[tickID]])
  if iserror:
  *standard is error*
  return marketData

currently when it runs the error is the following:
self.tws.reqMktData(tickID, contract, "", False)
TypeError: in method 'EClientSocketBase_reqMktyData', argument 2 of type 'TickerId'