pyautocad 是否需要正在运行的 autoCad 软件？

Question

我收到一个错误。当我尝试将 dwg AutoCAD 文件转换为 excel 时。 我用http://www.run8tech.com/script-to-update-text-and-mtext-in-autocad-from-excel.aspx 我收到一个错误

这是我运行的脚本。使用这个库pyautocad是否需要运行autocad

from __future__ import print_function
from os.path import join, dirname, abspath
from xlutils.copy import copy
import xlrd
import xlwt 
from pyautocad import Autocad, APoint
import os
import win32com.client
from pyautocad import Autocad, APoint
from pyautocad.contrib.tables import Table
#Create workbook
book = xlwt.Workbook()
ws = book.add_sheet("ExportedData")
book.save("Exported.xls")

#Open the workbook
xl_workbook = xlrd.open_workbook("Exported.xls")
sheet_names = xl_workbook.sheet_names()

xl_sheet = xl_workbook.sheet_by_name(sheet_names[0])

wb = copy(xl_workbook)
sheet = wb.get_sheet(0)

dwgfiles = filter(os.path.isfile, os.listdir( os.curdir ) )

cwd = os.path.abspath(os.path.curdir) #current working dir

for f in dwgfiles:
  print(f)
  if f.endswith(".dwg"):
      print("sdaasdas")
      """ open Document"""
      acad = Autocad()
      print(cwd)
      acad.doc.Open(cwd + "/" + f)

      print (acad.doc.Name)

      num_cols = xl_sheet.ncols   # Number of columns
      idx = 1

      acad = win32com.client.Dispatch("AutoCAD.Application")

      doc = acad.ActiveDocument   # Document object


      print ("MODEL SPACE")

      for entity in acad.ActiveDocument.ModelSpace:
          name = entity.EntityName
          print(name)
          if name == 'AcDbText':
              sheet.row(idx).write(0,entity.TextString) 
              sheet.row(idx).write(1,entity.ObjectID)
              sheet.row(idx).write(2,cwd + "/" + f)
              idx = idx + 1
          if name == 'AcDbBlockReference':
              HasAttributes = entity.HasAttributes
              if HasAttributes:
                #  print(entity.Name)
             #     print(entity.Layer)
              #    print(entity.ObjectID)
                  for attrib in entity.GetAttributes():

                      if attrib.TagString != "DATA":
                          sheet.row(idx).write(0,attrib.TextString ) 
                          sheet.row(idx).write(1,entity.ObjectID)
                          sheet.row(idx).write(2,cwd + "/" + f)
                          idx = idx + 1



      print ("PAPER SPACE")
      for entity in acad.ActiveDocument.PaperSpace:
          name = entity.EntityName
          if name == 'AcDbText':
              sheet.row(idx).write(0,entity.TextString) 
              sheet.row(idx).write(1,entity.ObjectID)
              sheet.row(idx).write(2,cwd + "/" + f)
              idx = idx + 1
          if name == 'AcDbBlockReference':
              HasAttributes = entity.HasAttributes
              if HasAttributes:
                #  print(entity.Name)
             #     print(entity.Layer)
              #    print(entity.ObjectID)
                  for attrib in entity.GetAttributes():

                      if attrib.TagString != "DATA":
                          sheet.row(idx).write(0,attrib.TextString ) 
                          sheet.row(idx).write(1,entity.ObjectID)
                          sheet.row(idx).write(2,cwd + "/" + f)


                      idx = idx + 1



      doc.Close(False)
      acad = None
wb.save("Exported.xls")

当我运行这个脚本时，我得到的错误是这个

File "test.py", line 36, in <module>
  acad.doc.Open(cwd + "/" + f)
File "C:\Users\nithish\AppData\Local\Programs\Python\Python37\lib\site-packages\pyautocad\api.py", line 74, in doc
  return self.app.ActiveDocument
File "C:\Users\nithish\AppData\Local\Programs\Python\Python37\lib\site-packages\pyautocad\api.py", line 63, in app
  self._app = comtypes.client.GetActiveObject('AutoCAD.Application', dynamic=True)
File "C:\Users\nithish\AppData\Local\Programs\Python\Python37\lib\site-packages\comtypes\client\__init__.py", line 173, in GetActiveObject
  clsid = comtypes.GUID.from_progid(progid)
File "C:\Users\nithish\AppData\Local\Programs\Python\Python37\lib\site-packages\comtypes\GUID.py", line 78, in from_progid
  _CLSIDFromProgID(str(progid), byref(inst))
File "_ctypes/callproc.c", line 933, in GetResult
OSError: [WinError -2147221005] Invalid class string

Answer 1

你会得到错误：

OSError: [WinError -2147221005] 无效的类字符串

如果

1. 您没有安装 AutoCAD
2. 如果您安装了某个版本，但尝试实例化错误的版本，例如：CreateObject("Autocad19.Application")（当您安装了 AutoCAD20 时）。

通常，库会省略版本号，因此“Autocad.Application”可以正常工作。

调用Autocad() 将启动一个已安装的 AutoCAD 实例。