PTrade

Ptrade在一个循环事件里能否不断获取股票实时价格？

假设在一个事件循环里：
如：
run_daily(context, get_price, '09:44')
定义的get_price 函数，
然后get_price函数里面有一个死循环，不断地获取价格。

因为ptrade的行情切片是每3秒更新的一次的，如果行情没更新，那么当前的价格也是过去最近的一个3s的价格。

现在问题是，在一个固定的时间里面，不断地读取价格函数，能获取到最新的价格吗？

我们用代码实践一下：

import time

def initialize(context):

    # 初始化策略



    run_daily(context, get_price, '09:44')



def handle_data(context, data):

    pass

    

    

def get_price(context):

    for i in range(10):

        target_list =['113585.SS','123057.SZ']

        bond_gear_price_target = get_gear_price(target_list)

    

        for code in target_list:

            price = bond_gear_price_target[code]['offer_grp'][1][0]

            log.info('code: {} price {} '.format(code,price))

            

        time.sleep(1)

输出的结果：

2022-09-28 10:31:00 - INFO - code: 113585.SS price 169.147 

2022-09-28 10:31:00 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:01 - INFO - code: 113585.SS price 169.147 

2022-09-28 10:31:01 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:02 - INFO - code: 113585.SS price 169.156 

2022-09-28 10:31:02 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:03 - INFO - code: 113585.SS price 169.156 

2022-09-28 10:31:03 - INFO - code: 128053.SZ price 144.8 

2022-09-28 10:31:04 - INFO - code: 113585.SS price 169.199 

2022-09-28 10:31:04 - INFO - code: 128053.SZ price 144.8 

2022-09-28 10:31:05 - INFO - code: 113585.SS price 169.199 

2022-09-28 10:31:05 - INFO - code: 128053.SZ price 144.8 

2022-09-28 10:31:06 - INFO - code: 113585.SS price 169.199 

2022-09-28 10:31:06 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:07 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:07 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:08 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:08 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:09 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:09 - INFO - code: 128053.SZ price 144.746 

2022-09-28 10:31:10 - INFO - code: 113585.SS price 169.066 

2022-09-28 10:31:10 - INFO - code: 128053.SZ price 144.746 

2022-09-28 10:31:11 - INFO - code: 113585.SS price 169.066 

2022-09-28 10:31:11 - INFO - code: 128053.SZ price 144.746 

2022-09-28 10:31:12 - INFO - code: 113585.SS price 169.066 

2022-09-28 10:31:12 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:13 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:13 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:14 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:14 - INFO - code: 128053.SZ price 144.785 

2022-09-28 10:31:15 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:15 - INFO - code: 128053.SZ price 144.692 

2022-09-28 10:31:16 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:16 - INFO - code: 128053.SZ price 144.692 

2022-09-28 10:31:17 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:17 - INFO - code: 128053.SZ price 144.692 

2022-09-28 10:31:18 - INFO - code: 113585.SS price 169.068 

2022-09-28 10:31:18 - INFO - code: 128053.SZ price 144.691 

2022-09-28 10:31:19 - INFO - code: 113585.SS price 169.062 

2022-09-28 10:31:19 - INFO - code: 128053.SZ price 144.691 

2022-09-28 10:31:20 - INFO - code: 113585.SS price 169.062

为了更为直观，过滤掉另外一只可转债
只保留一只

2022-09-28 10:31:00 - INFO - code: 113585.SS price 169.147 



2022-09-28 10:31:01 - INFO - code: 113585.SS price 169.147 



2022-09-28 10:31:02 - INFO - code: 113585.SS price 169.156 



2022-09-28 10:31:03 - INFO - code: 113585.SS price 169.156 



2022-09-28 10:31:04 - INFO - code: 113585.SS price 169.199 



2022-09-28 10:31:05 - INFO - code: 113585.SS price 169.199 



2022-09-28 10:31:06 - INFO - code: 113585.SS price 169.199 



2022-09-28 10:31:07 - INFO - code: 113585.SS price 169.068 



2022-09-28 10:31:08 - INFO - code: 113585.SS price 169.068 



2022-09-28 10:31:09 - INFO - code: 113585.SS price 169.068 



2022-09-28 10:31:10 - INFO - code: 113585.SS price 169.066 



2022-09-28 10:31:11 - INFO - code: 113585.SS price 169.066