IBKR期权交易Python程序报错：'EtradeOnly'属性不支持

我开发了如下用于通过IBKR买入期权的Python程序：

from ibapi.client import EClient
from ibapi.wrapper import EWrapper
from ibapi.contract import Contract
from ibapi.order import *

import threading
import time


class IBapi(EWrapper, EClient):
    def __init__(self):
        EClient.__init__(self, self)
    
    def nextValidId(self, orderId: int):
        super().nextValidId(orderId)
        self.nextorderId = orderId
        print('The next valid order id is: ', self.nextorderId)

    def orderStatus(self, orderId, status, filled, remaining, avgFullPrice, permId, parentId, lastFillPrice, clientId, whyHeld, mktCapPrice):
        print('orderStatus - orderid:', orderId, 'status:', status, 'filled', filled, 'remaining', remaining, 'lastFillPrice', lastFillPrice)
    
    def openOrder(self, orderId, contract, order, orderState):
        print('openOrder id:', orderId, contract.symbol, contract.secType, '@', contract.exchange, ':', order.action, order.orderType, order.totalQuantity, orderState.status)

    def execDetails(self, reqId, contract, execution):
        print('Order Executed: ', reqId, contract.symbol, contract.secType, contract.currency, execution.execId, execution.orderId, execution.shares, execution.lastLiquidity)


def run_loop():
    app.run()


app = IBapi()
app.connect('127.0.0.1', 7497, 123)

app.nextorderId = None

#Start the socket in a thread
api_thread = threading.Thread(target=run_loop, daemon=True)
api_thread.start()

#Check if the API is connected via orderid
while True:
    if isinstance(app.nextorderId, int):
        print('connected')
        print()
        break
    else:
        print('waiting for connection')
        time.sleep(1)

#Create contract
contract = Contract()
contract.symbol = 'TSLA'
contract.secType = 'OPT'
contract.exchange = 'SMART'
contract.lastTradeDateOrContractMonth = '20230120'
contract.strike = 100
contract.right = 'C'
contract.multiplier = '100'

#Create order object
order = Order()
order.action = 'BUY'
order.totalQuantity = 1
order.orderType = 'MKT'

#Place order
app.placeOrder(app.nextorderId, contract, order)


time.sleep(3)
app.disconnect()

运行该程序后得到如下输出：

ERROR -1 2104 Market data farm connection is OK:usfarm.nj
ERROR -1 2104 Market data farm connection is OK:cashfarm
ERROR -1 2104 Market data farm connection is OK:usfarm
ERROR -1 2106 HMDS data farm connection is OK:euhmds
ERROR -1 2106 HMDS data farm connection is OK:fundfarm
ERROR -1 2106 HMDS data farm connection is OK:ushmds
ERROR -1 2158 Sec-def data farm connection is OK:secdefnj
waiting for connection
The next valid order id is:  1
ERROR 1 10268 The 'EtradeOnly' order attribute is not supported.
connected

其中前几个错误为预期内，但最后出现的错误“ERROR 1 10268 The 'EtradeOnly' order attribute is not supported”完全超出预期。我认为该错误与代码无关，查阅IBKR API指南也未找到相关信息，希望得到帮助或方向指引。感谢您的时间！

解决方向 #

• 显式设置订单的etradeOnly属性：尽管代码中没有手动设置该属性，但IBKR的Order类可能存在默认值触发了这个字段。尝试在创建订单后添加order.etradeOnly = False，强制关闭该属性。
• 检查API客户端与TWS/IB网关版本兼容性：这个错误大概率是API客户端版本和你运行的TWS或IB网关版本不匹配导致的，确保两者版本一致，优先更新到最新稳定版。
• 重置TWS/IB网关的API设置：进入TWS的API配置界面，检查是否存在与Etrade相关的限制选项，尝试将API设置恢复为默认状态后重新测试。
• 使用订单工厂方法创建订单：替代手动初始化Order对象，改用IBAPI提供的Order.create_market_order(action='BUY', totalQuantity=1)方法，该方法会生成符合IBKR标准的订单对象，避免默认属性引发的问题。

内容的提问来源于stack exchange，提问作者user20876058