无法从TWS API中提取历史数据

Question

def get_IB_historical_data(self, ibcontract, tickerid, durationStr, barSizeSetting):
historic_data_queue = finishableQueue(self.init_historicprices(tickerid))
self.reqHistoricalData(
tickerid,  # tickerId,
ibcontract,  # contract,
datetime.datetime.today().strftime("%Y%m%d %H:%M:%S %Z"),  # endDateTime,
durationStr,  # durationStr,
barSizeSetting,  # barSizeSetting,
"TRADES",  # whatToShow,
1,  # useRTH,
1,  # formatDate
False,  # KeepUpToDate <<==== added for api 9.73.2
[] ## chartoptions not used
)

MAX_WAIT_SECONDS = 10
historic_data = historic_data_queue.get(timeout = MAX_WAIT_SECONDS)
if historic_data_queue.timed_out():
print("historic_data_queue.timed_out")
self.cancelHistoricalData(tickerid)
df = pd.DataFrame(historic_data)
df.columns = ['Datetime', 'Open', 'High', 'Low', 'Close', 'Volume']
return df

如果name=='main'：

app = App_Class('127.0.0.1',7497, 11)
time.sleep(1234)
ibcontract = IBcontract()
ibcontract.secType = 'FUT'
ibcontract.lastTradeDateOrContractMonth = '20221129'
ibcontract.symbol = 'HSI'
ibcontract.exchange = 'HKFE'
resolved_ibcontract = app.resolve_ib_contract(ibcontract)
print(resolved_ibcontract)
df = app.get_IB_historical_data(resolved_ibcontract, 10, durationStr='30 D', barSizeSetting='1 D')
print(df)

我是初学蟒蛇的。我不知道为什么我不能打印数据帧，我已经订阅了数据。

我第一次运行程序：576501930，HSI，FUT，20221129,0.0，，50，香港期交所，，HKD，HSIX2，HSI、False，组合：错误10 320读取请求时出错。字符串索引超出范围：0历史数据队列超时错误-1 504未连接ValueError：长度不匹配：期望的轴有0个元素，新值有6个元素

我第二次运行程序时，当我重新运行时，他们说"_队列空的"；

任何人都知道为什么以及如何修复它，谢谢。

Answer 1

''添加''ibcontract.includeExpired=True"合同详细信息">

''从''更改datetime.datetime.today((.strftime("%Y%m%d%H:%m:%S%Z"(，#endDateTime，''到''datetime.datetime.today((.strftime("%Y%m%d-%H:%m:%S"(，#endDateTime，"在定义get_IB_historical_data"中