设置ibapi的套接字端口

Question

我已按照以下步骤在远程计算机上安装了ibapi

1. 从http://interactivebrokers.github.io/下载api
2. 解压缩，然后运行python3 setup.py bdist_wheel
3. python3 -m pip install --user --upgrade dist/ibapi-9.76.1-py3-none-any.whl

此后，我能够在python会话中导入ibapi，并设置了一个应用程序。

from ibapi import wrapper
from ibapi.client import EClient
from ibapi.utils import iswrapper #just for decorator
from ibapi.common import *
from ibapi.contract import *
from ibapi.ticktype import *

class TestApp(wrapper.EWrapper, EClient):
    def __init__(self):
        wrapper.EWrapper.__init__(self)
        EClient.__init__(self, wrapper=self)

    @iswrapper
    def nextValidId(self, orderId:int):
        print("setting nextValidOrderId: %d", orderId)
        self.nextValidOrderId = orderId
        #here is where you start using api
        contract = Contract()
        contract.symbol = "AAPL"
        contract.secType = "STK"
        contract.currency = "USD"
        contract.exchange = "SMART"
        self.reqMktData(1101, contract, "", False, None)

    @iswrapper
    def error(self, reqId:TickerId, errorCode:int, errorString:str):
        print("Error. Id: " , reqId, " Code: " , errorCode , " Msg: " , errorString)

    @iswrapper
    def tickPrice(self, reqId: TickerId , tickType: TickType, price: float,
                  attrib:TickAttrib):
        print("Tick Price. Ticker Id:", reqId, "tickType:", tickType, "Price:", price)
        #this will disconnect and end this program because loop finishes
        self.done = True

[当我尝试使用app.connect("127.0.0.1", 7497, clientId=123)连接该应用程序时，它引发了以下错误

Error. Id:  -1  Code:  502  Msg:  Couldn't connect to TWS. Confirm that "Enable ActiveX and Socket EClients" 
is enabled and connection port is the same as "Socket Port" on the 
TWS "Edit->Global Configuration...->API->Settings" menu. Live Trading ports: 
TWS: 7496; IB Gateway: 4001. Simulated Trading ports for new installations 
of version 954.1 or newer:  TWS: 7497; IB Gateway: 4002

大部分资源讨论如何在gui上设置tws。如何在python客户端上解决此问题？

Answer 1

即在此处连接app.connect("127.0.0.1", 7497, clientId=123)的端口'7497'。