python之通过 Python 打开一个新的 AutoCAD 实例

有人有在 AutoCAD 中使用 Python 的经验吗？我只是在尝试，作为一个测试，看看我是否可以通过 Python 打开一个新的 AutoCAD 实例，尽管 PyAutocad 运行良好(如果您有任何建议，请随时提供其他建议)。

无论如何基于文档 ( https://pypi.python.org/pypi/pyautocad/#downloads ) - 它说这些代码行应该做到这一点，但到目前为止还没有发生任何事情。

from pyautocad import Autocad, APoint 
acad = Autocad() 
acad.prompt("Hello, Autocad from Python\n") 

只有这些代码行应该在命令行上生成信息，但会产生大约 50 行的回溯(如果有人感兴趣，我也可以发布)——有什么想法吗？

Traceback (most recent call last): 
File "<pyshell#5>", line 1, in <module> 
acad.prompt("Hello, Autocad") 
File "C:\Python27\lib\site-packages\pyautocad\api.py", line 153, in prompt 
self.doc.Utility.Prompt(u"%s\n" % text) 
File "C:\Python27\lib\site-packages\pyautocad\api.py", line 65, in doc 
return self.app.ActiveDocument 
File "C:\Python27\lib\site-packages\pyautocad\api.py", line 54, in app 
self._app = comtypes.client.GetActiveObject('AutoCAD.Application') 
File "C:\Python27\lib\site-packages\comtypes\client\__init__.py", line 180, in GetActiveObject 
obj = comtypes.GetActiveObject(clsid, interface=interface) 
File "C:\Python27\lib\site-packages\comtypes\__init__.py", line 1165, in GetActiveObject 
oledll.oleaut32.GetActiveObject(byref(clsid), None, byref(p)) 
File "_ctypes/callproc.c", line 941, in GetResult 
WindowsError: [Error -2147221021] Operation unavailable 

添加 VBA 模块后，回溯现在显示为:

Traceback (most recent call last): 
  File "<pyshell#4>", line 1, in <module> 
    acad.prompt("Hello") 
  File "C:\Python27\lib\site-packages\pyautocad\api.py", line 153, in prompt 
    self.doc.Utility.Prompt(u"%s\n" % text) 
  File "C:\Python27\lib\site-packages\pyautocad\api.py", line 65, in doc 
    return self.app.ActiveDocument 
  File "C:\Python27\lib\site-packages\pyautocad\api.py", line 54, in app 
    self._app = comtypes.client.GetActiveObject('AutoCAD.Application') 
  File "C:\Python27\lib\site-packages\comtypes\client\__init__.py", line 183, in GetActiveObject 
    return _manage(obj, clsid, interface=interface) 
  File "C:\Python27\lib\site-packages\comtypes\client\__init__.py", line 188, in _manage 
    obj = GetBestInterface(obj) 
  File "C:\Python27\lib\site-packages\comtypes\client\__init__.py", line 112, in GetBestInterface 
    interface = getattr(mod, itf_name) 
AttributeError: 'module' object has no attribute 'IAcadApplication' 

现在，在每个@reclosedev 删除 comtypes 的“gen”文件夹后，Autocad 现在可以打开，但文本字符串仍然不会出现在命令行上 - 回溯显示:

Traceback (most recent call last): 
  File "<pyshell#4>", line 1, in <module> 
    acad.prompt("Hello") 
  File "C:\Python27\lib\site-packages\pyautocad\api.py", line 153, in prompt 
    self.doc.Utility.Prompt(u"%s\n" % text) 
  File "C:\Python27\lib\site-packages\pyautocad\api.py", line 65, in doc 
    return self.app.ActiveDocument 
  File "C:\Python27\lib\site-packages\pyautocad\api.py", line 59, in app 
    self._app.Visible = self._visible 
  File "C:\Python27\lib\site-packages\comtypes\client\dynamic.py", line 116, in __setattr__ 
    dispid = self._comobj.GetIDsOfNames(name)[0] 
  File "C:\Python27\lib\site-packages\comtypes\automation.py", line 643, in GetIDsOfNames 
    self.__com_GetIDsOfNames(riid_null, arr, len(names), lcid, ids) 
COMError: (-2147418111, 'Call was rejected by callee.', (None, None, None, 0, None)) 

请您参考如下方法:

您考虑过 IronPython 吗？

http://through-the-interface.typepad.com/through_the_interface/2009/03/using-ironpython-with-autocad.html

这是一个如何利用它的简单示例:

import clr 
import System 
 
from System import Type, Activator 
 
acApp = Activator.CreateInstance(Type.GetTypeFromProgID("AutoCAD.Application")) 
acApp.Visible = 1 
acApp.ActiveDocument.SendCommand("(Princ \"Hello World from Python!\")(Princ)\n") 

显然，ProgId 将对应于最后打开的 AutoCAD 版本。