Question

我打开了一个Excel，其中包含RTD流数据（来自交易平台的财务数据）。我的目标是通过Python读取数据并在数据更改后立即保存。目标是捕获每毫秒。我正在使用xlwings读取单元格值，但是通常在50-100次尝试后，我得到了相同的错误。知道如何解决吗？

import xlwings as xw

n_of_times_checked=0
while True:
    n_of_times_checked +=1
    print("Cell value:",xw.Range("D41").value," Num of times checked:",n_of_times_checked)

结果：

Cell value: 55.0  Num of times checked: 71
Cell value: 55.0  Num of times checked: 72
Cell value: 55.0  Num of times checked: 73
Cell value: 55.0  Num of times checked: 74
Cell value: 55.0  Num of times checked: 75
Traceback (most recent call last):
  File "D:/Google drive/Python/Backtesting/backtesting_uj/RTD_recorder.py", line 7, in <module>
    print("Cell value:",xw.Range("D41").value," Num of times checked:",n_of_times_checked)
  File "C:\Users\Laci\AppData\Local\Programs\Python\Python37-32\lib\site-packages\xlwings\main.py", line 999, in __init__
    impl = apps.active.range(cell1).impl
  File "C:\Users\Laci\AppData\Local\Programs\Python\Python37-32\lib\site-packages\xlwings\main.py", line 392, in range
    return Range(impl=self.impl.range(cell1, cell2))
  File "C:\Users\Laci\AppData\Local\Programs\Python\Python37-32\lib\site-packages\xlwings\_xlwindows.py", line 401, in range
    xl1 = self.xl.Range(arg1)
  File "C:\Users\Laci\AppData\Local\Programs\Python\Python37-32\lib\site-packages\xlwings\_xlwindows.py", line 63, in __call__
    v = self.__method(*args, **kwargs)
  File "<COMObject <unknown>>", line 2, in Range
pywintypes.com_error: (-2147352573, 'Member not found..', None, None)

Answer 1

我一直在寻求帮助，因为我没有得到您所知道的值，只是得到＃¿NAME？我的代码，虽然键F2 F9获得正确的值（rtd.tos）。无论如何，我想问题是您的代码在更改/刷新时查找值时代码崩溃，因此我建议您使用try / except包装您的打印语句。另外，请注意rtd的刷新速率应为Application.RTD.ThrottleInterval值（默认为1秒）。

xlwings错误：pywintypes.com_error：（-2147352573，“未找到成员。”，无，无）

1 个答案: