А если использовать
import win32com.client
т.е. так:
import win32com.client
import array
app = win32com.client.Dispatch("AutoCAD.Application")
acadDoc = app.ActiveDocument
files = r"сектор-план"
insertionPnt = array.array('d', [377.7541,304.5495,0])
acadDoc.ModelSpace.InsertBlock(insertionPnt, files, 1, 1, 1, 0)
получаю ошибку:
acadDoc.ModelSpace.InsertBlock(insertionPnt, files, 1, 1, 1, 0)
File "<COMObject <unknown>>", line 5, in InsertBlock
pywintypes.com_error: (-2147352567, 'Ошибка.', (0, None, None, None, 0, -2147024809), None)