Python 如何从交互式经纪人API获取历史股价数据？

我想使用IBAPI获取历史股票数据。我的代码不起作用，什么也不返回。有人能帮我编辑代码吗？谢谢

from ibapi import client
from ibapi import wrapper
import datetime
from ibapi.contract import Contract
from ibapi.common import BarData

# ! [socket_init]
class App(wrapper.EWrapper,client.EClient):
    def __init__(self):
        wrapper.EWrapper.__init__(self)
        client.EClient.__init__(self, wrapper=self)


 #Build a sample contract
contract = Contract();
contract.symbol = "9005.T";
contract.secType = "STK";
contract.currency = "JPY";
contract.exchange = "SMART";


app = App()
app.connect(host='localhost',port=7497, clientId=3)
print(app.isConnected())
queryTime = (datetime.datetime.today() - datetime.timedelta(days=180)).strftime("%Y%m%d %H:%M:%S")
print(app.reqHistoricalData(4102, contract, queryTime,"1 M", "1 day", "MIDPOINT", 1, 1, False, []))
queryTime = (datetime.datetime.today() - datetime.timedelta(days=180)).strftime("%Y%m%d %H:%M:%S")
print(app.historicalData(4102,BarData))


OUTPUT:
True
None
None

---

我试图阅读源代码。但我发现这对我来说很难理解。其他帖子给出的答案似乎与最新的api版本无关。

下面是我要做的

class应用程序（wrapper.EWrapper，client.EClient）：

如果我想覆盖它的任何方法，我只会将

EClient

子类化。我不太使用python，但在其他语言中也是如此

在

类应用程序中

您需要覆盖您感兴趣的方法，如

历史数据

在

app.connect

之后，必须调用

app.run（）

以启动其消息读取器线程。一旦该线程取得控制权，它将在您的程序中阻塞，所以您必须异步执行程序流

我会把数字放在评论里，让你看到流程

from ibapi.client import EClient
from ibapi.wrapper import EWrapper
from ibapi.contract import Contract
from ibapi.common import BarData

import datetime

class MyWrapper(EWrapper):

    def nextValidId(self, orderId:int):
        #4 first message received is this one
        print("setting nextValidOrderId: %d", orderId)
        self.nextValidOrderId = orderId
        #5 start requests here
        self.start()

    def historicalData(self, reqId:int, bar: BarData):
        #7 data is received for every bar
        print("HistoricalData. ReqId:", reqId, "BarData.", bar)

    def historicalDataEnd(self, reqId: int, start: str, end: str):
        #8 data is finished
        print("HistoricalDataEnd. ReqId:", reqId, "from", start, "to", end)
        #9 this is the logical end of your program
        app.disconnect()
        print("finished")

    def error(self, reqId, errorCode, errorString):
        # these messages can come anytime.
        print("Error. Id: " , reqId, " Code: " , errorCode , " Msg: " , errorString)

    def start(self):
        queryTime = (datetime.datetime.today() - datetime.timedelta(days=180)).strftime("%Y%m%d %H:%M:%S")

        fx = Contract()
        fx.secType = "CASH" 
        fx.symbol = "USD"
        fx.currency = "JPY"
        fx.exchange = "IDEALPRO"

        #6 request data, using fx since I don't have Japanese data
        app.reqHistoricalData(4102, fx, queryTime,"1 M", "1 day", "MIDPOINT", 1, 1, False, [])

app = EClient(MyWrapper()) #1 create wrapper subclass and pass it to EClient
app.connect("127.0.0.1", 7497, clientId=123) #2 connect to TWS/IBG
app.run() #3 start message thread

---

有人能帮我吗？显示制作简单程序的方法。您的程序甚至没有使用

app.run（）

@brian启动消息循环谢谢您的回复，brian！我来检查一下。我从你们那个里找到了很多关于这个领域的答案。我很感激你的努力谢谢你，你很善良。你的帮助节省了我很多时间。