有没有人使用Python和AutoCAD的经验？我只是在试验中想通过Python打开一个新的AutoCAD实例，并发现PyAutocad运行良好(如果你有其他建议，请随意提供)。
根据文档(https://pypi.python.org/pypi/pyautocad/#downloads) - 它说这些代码应该可以做到，但目前还没有任何反应。
from pyautocad import Autocad, APoint
acad = Autocad()
acad.prompt("Hello, Autocad from Python\n")
只需要这些代码，就应该在命令行上生成信息，但实际上会导致大约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
添加了VBA模块后，回溯现在显示：
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 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'
现在按照@reclosedev的建议删除了comtypes的“gen”文件夹，虽然Autocad现在已经打开了，但是字符串文本仍然无法显示在命令行上 - traceback读取如下：
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))