无法在python中调度com对象 [英] Unable to dispatch com object in python

问题描述

我正试图从名为eSignal的数据提要提供商那里获取交易价格。使用他们在开发人员页面上的示例（链接），我可以轻松地复制C＃中的功能。不幸的是，该提供程序不支持python开发人员，因此我尝试自己使用com对象引用中的示例自己执行此操作。但是，由于无法分派有问题的com对象，因此一开始我就已经失败了。

I am trying to capture trading prices from a data feed provider called eSignal. Using their examples on their developer page (Link), I can easily replicate the functionality in C#. Unfortunately the provider does not support python developers and thus I am attempting to do this on my own, using the com object reference in their examples. However, I already fail at the very beginning, since I cannot dispatch the com object in question.

该com对象由eSignal提供（WinSig.exe包含com对象。数据），然后使用makepy（IESignal v.1.0.0）进行了注册：

The com object is provided by eSignal (WinSig.exe contains the com object data) and I registered it using makepy (IESignal v.1.0.0):

C:\Python26\Lib\site-packages\win32com\client>python makepy.py
Generating to C:\Python26\lib\site-packages\win32com\gen_py\9C7CCB46-E9E8-4DDD-9784-4458877C2F10x0x1x0.py
Building definitions from type library...
Generating...
Importing module

因此，模块文件已成功生成。然后，我尝试从python调度它：

So the module file is generated successfully. I then try to dispatch it from python:

from win32com.client import Dispatch
from win32com.client.gencache import EnsureDispatch

CLSID = '{9C7CCB46-E9E8-4DDD-9784-4458877C2F10}'
print Dispatch(CLSID)

但是，这会导致错误：

com_error: (-2147221164, 'Class not registered', None, None)

这种情况发生在Dispatch以及sureDispatch上。我还浏览了makepy生成的模块，并尝试分派其中提供的每个单独的CLSID-无济于事。

This happens for Dispatch, as well as EnsureDispatch. I also went through the module generated by makepy and tried to dispatch every single different CLSID provided in there - to no avail.

有人知道这个问题可能是什么吗？非常感谢您的帮助！

Anybody knows what the issue might be? Your help is much appreciated!

谢谢！

推荐答案

您确定要实例化类（但不是界面）。搜寻uid {9C7CCB46-E9E8-4DDD-9784-4458877C2F10}，我已经收到ServerEsignal-它看起来像是界面（IESignal）

Are you sure that you instantiate class (but not Interface). Googling on uid {9C7CCB46-E9E8-4DDD-9784-4458877C2F10} I've gotten ServerEsignal - and it is look like interface (IESignal)

这篇关于无法在python中调度com对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！