Python 获取任意周期开盘日

import json
import requests
import datetime
import tushare as ts

cal_dates = ts.trade_cal()

today=datetime.date.today().strftime("%Y%m%d")   #获取今日日期
url='http://xxxx：xx/api/market/ontradingpool'  #默认url

#获取任意周期交易日数据
def opendate(n,date12):
    stocklist=[]
    for i in cal_dates.index:
        str_date = cal_dates.loc[i]['calendarDate']
        isOpen = cal_dates.loc[i]['isOpen']
        if not isOpen:
            continue
        date = datetime.datetime.strptime(str_date, '%Y-%m-%d').date()  #获取格式为2019-02-22
        date1=date.strftime("%Y%m%d")   #处理日期格式为20190222
        stocklist.append(date1)

    start=int(stocklist.index(date12)-n+1)  #往前倒推n天
    end=int(stocklist.index(date12)+1)      #结束日期
    opendate=stocklist[start:end]
    return opendate

#获取单策略单日期对应code数据
def getStock(url,key,date):   #使用requests.get 拼接url数据
    date={
        'key':key,
        'date':date
    }
    res=requests.get(url,params=date)

    all_info=json.loads(res.text)
    #result = json.loads(all_info)
    stocklist = []
    for h in range(len(all_info)):
        code = all_info[h]['code']
        # print(code)
        result3 = str(code)
        if code > 1000000:
            code = result3[1:7]
        else:
            code = result3[0:6]
        stocklist.append(code)
        stocklist = list(set(stocklist))  # set去重
    return stocklist

# def Boduan(date,key):#波段
#     api2 = 'http://xxxx：xx/api/market/ontradingpool?key={key}&date={date}'.format(key=key, date=date)
#     print(api2)
#     all_info = requests.get(api2).text
#     result = json.loads(all_info)
#     stocklist = []
#     for h in range(len(result)):
#         code=result[h]['code']
#         #print(code)
#         result3 = str(code)
#         if code>1000000:         #处理股票代码格式统一化
#             code=result3[1:7]
#         else:
#             code = result3[0:6]
#         stocklist.append(code)
#         stocklist=list(set(stocklist))#set去重
#     #print(len(stocklist))
#     return stocklist
#多日数据生成list
def tongji():
    listBoduan = []   #两个参数同时for循环
    for i in range(len(opendate1)):
        listLine=getStock(url,strategyG,opendate1[i])
        listBoduan += listLine
    print(len(set(listBoduan)))

if __name__ == '__main__':
    opendate1 = opendate(20,'')
    strategyG = ''
    tongji()