Win32Com连接失败到Autocad通过Python [英] Win32Com connection failure to Autocad via Python

问题描述

我需要通过Com界面连接和控制Autocad。为了这个目的，我使用Python。在我第一次试用一个非常基本的代码片段，我得到一个错误。代码是

I need to connect and control Autocad via Com interface. For this purpose, i use Python. In my first trial with a very basic snippet, i got an error. The code is

import win32com.client
acad = win32com.client.Dispatch("AutoCAD.Application")
doc = acad.ActiveDocument
doc.Utility.Prompt("Hello from Python\n")

当我尝试运行它时，我得到：

and when i try to run it, i get this :

Traceback (most recent call last):
  File "C:\Users\SBYSMR10\Desktop\recipe-440493-1.py", line 2, in <module>
    acad = win32com.client.Dispatch("AutoCAD.Application")
  File "C:\Python26\lib\site-packages\win32com\client\__init__.py", line 95, in Dispatch
    dispatch, userName = dynamic._GetGoodDispatchAndUserName(dispatch,userName,clsctx)
  File "C:\Python26\lib\site-packages\win32com\client\dynamic.py", line 108, in _GetGoodDispatchAndUserName
    return (_GetGoodDispatch(IDispatch, clsctx), userName)
  File "C:\Python26\lib\site-packages\win32com\client\dynamic.py", line 85, in _GetGoodDispatch
    IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.IID_IDispatch)
com_error: (-2147221005, 'Invalid class string', None, None)

我安装了Python 2.6和Autocad LT 2009。我搜索通过网络的解决方案，但couldnt找到任何。

I have Python 2.6 and Autocad LT 2009 installed. I searched through the net for a solution but couldnt find any. So could you help me fix this issue?

提前感谢

推荐答案

p> AutoCAD LT 版本不支持自动化（ Autodesk组讨论）。

AutoCAD LT versions doesn't support automation (discussion in Autodesk group).

如果您能够安装完整的AutoCAD版本，建议您使用 comtypes package。使用 win32com ，您无法向文档中添加实体，因为AutoCAD要求VARIANT类型代码 VT_ARRAY | VT_I2或VT_ARRAY | VT_R8 InsertionPoint 。

If you'll be able to install full AutoCAD version, I'd suggest you to use comtypes package. With win32com you can't add entities to document, because AutoCAD requires VARIANTs with the typecodes VT_ARRAY | VT_I2 or VT_ARRAY | VT_R8 for parameters, e.g. InsertionPoint.

请参阅 comtypes 文档中的示例

See examples in comtypes documentation

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