API IB TWS Python括号问题

Question

订单被放入tws中，但在激活时，它只会取消自身以及附加的站点和目标。让我没有订单，没有位置。这是因为我连接父对象的方式，并且在目标之前不将transmit设置为false吗？我无法理解tws指南中使用transmission=false然后最后一个true的例子。这就是为什么它不起作用吗？

###################################Place Buy /BUY Bracket
if direction == "BUY":
app.reqGlobalCancel()
Entry = Order()
Entry.action = 'BUY'
Entry.orderId = app.nextorderId
Entry.orderType = 'STP LMT'
Entry.auxPrice = price + .25
Entry.lmtPrice = price + .25
Entry.totalQuantity = lotsize
Entry.outsideRth = True
Entry.tif = 'GTC'
app.placeOrder(Entry.orderId, contract, Entry)
###################################Place Stop /BUY Bracket                  
app.nextorderId += 1
stop_order = Order()
stop_order.parentId = Entry.orderId
stop_order.action = 'SELL'
stop_order.orderType = 'STP'
stop_order.auxPrice = buystop + .25
stop_order.totalQuantity = lotsize                  
stop_order.orderId= Entry.orderId +1
stop_order.outsideRth = True
stop_order.tif = 'GTC'
app.placeOrder(stop_order.orderId, contract, stop_order)
stopid=str(stop_order.orderId)
###################################Store Stop Id for stop adjustments                   
if path.exists("StopOrder.txt"):
os.remove("StopOrder.txt")            
file = open("StopOrder.txt","w")
file.write(stopid)
file.close()
###################################Place Target /BUY Bracket
app.nextorderId += 1                
target_order = Order()
target_order.parentId = Entry.orderId
target_order.action = 'SELL'
target_order.orderType = 'LMT'
target_order.lmtPrice = buytar + .25
target_order.totalQuantity = lotsize
target_order.outsideRth = True
target_order.tif = 'GTC'
app.placeOrder(app.nextorderId, contract, target_order)

Answer 1

问题是有一个批量限制，超过了40个。