在 Jupyter Notebooks 中通过 API 连接到 Interactive Brokers TWS

Question

我只是想找到获取股票和其他数据的方法。 下面的代码返回错误 1 504 未连接

是市场时间的问题，使用jupyter的问题，还是一些错误？

如果你能回答，先谢谢你，我是一个真正的编码初学者，我有点迷茫。 我遵循了网站其他地方概述的所有必需的全局设置清单

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

import threading
import time

class IBapi(EWrapper, EClient):
    def __init__(self):
        EClient.__init__(self, self)
    def tickPrice(self, reqId, tickType, price, attrib):
        if tickType==2 and reqId==1:
        print('The current ask price is: ', price)
        
def run_loop():
    app.run()

app=IBapi()
app.connect('127.0.0.1', 7496, 10)

#start socket in a thread

api_thread=threading.Thread(target=run_loop, daemon=True)
api_thread.start

time.sleep(1) #sleep interval to allow time for connection to server

#create contract object

apple_contract= Contract()
apple_contract.symbol='AAPL'
apple_contract.secType='STK'
apple_contract.exchange='SMART'
apple_contract.currency='USD'

#request market data

app.reqMktData(1, apple_contract,"", False, False, [])

time.sleep(10) #sleep interval to allow time for incoming price data
app.disconnect()`

Answer 1

代码有两个小问题，第一个可能是拼写错误，第二个会导致它无法启动线程和返回消息。

...
    def tickPrice(self, reqId, tickType, price, attrib):
        if tickType==2 and reqId==1:
            print('The current ask price is: ', price)  # 1) Indentation
...

#start socket in a thread
api_thread=threading.Thread(target=run_loop, daemon=True)
api_thread.start()   # 2) Parenthesis 

...