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ETABS v18 API - Cannot attach python with etabs

ETABS v18 API - Cannot attach python with etabs

ETABS v18 API - Cannot attach python with etabs

(OP)
Hi , i imported comtypes.client and tried to start with:
ETABSObject = comtypes.client.GetActiveObject("CSI.ETABS.API.ETABSObject")
SapModel = ETABSObject.SapModel

but i got OSError so searched and found these article thread802-455667: ETABS API & Python - Cannot Attach to Existing Instance but unfortunatelly this didn't work too. The error were saying cytypes can't be strings etc.
Please help me.

RE: ETABS v18 API - Cannot attach python with etabs

What python environment are you using (pycharm, anaconda spyder or other). Did you have etabs open when you ran your script and on which line did you get the OSError? And also check which version of comtypes you have installed. Latest is version 1.1.8 (Dec 26 2020), I'm using version 1.1.7. Only just saw that version is updated to 1.1.8 now as I check PyPI. Will install and see how well it works.

CODE --> python

import comtypes.client;
import os;
import sys;

try:
    #get the active ETABS object
    EtabsObject=comtypes.client.GetActiveObject("CSI.ETABS.API.ETABSObject")
except (OSError,comtypes.COMError):
    print("No running instance of the program found or failed to attach.")
    sys.exit(-1)
#create SapModel object
SapModel=EtabsObject.SapModel 

RE: ETABS v18 API - Cannot attach python with etabs

(OP)
İ tried both pycharm and spyder, with creating a python 3.8 environment ,yes etabs was open. yes i am using comtypes version 1.1.8 and i tried the code that you send it gave like you expected which is No running instance of the program found... So i think this is my real problem, how do i solve this, i am using ETABS v18.1.1



this is the error message i see with using comtypes 1.1.8

*

CODE --> python

Traceback (most recent call last):
  File "C:/Users/..../AppData/Local/Programs/Python/Python38-32/Lib/site-packages/comtypes/123.py", line 6, in <module>
    EtabsObject=comtypes.client.GetActiveObject("CSI.ETABS.API.ETABSObject")
  File "C:\Users\.....\AppData\Local\Programs\Python\Python38-32\lib\site-packages\comtypes\client\__init__.py", line 173, in GetActiveObject
    clsid = comtypes.GUID.from_progid(progid)
  File "C:\Users\.....\AppData\Local\Programs\Python\Python38-32\lib\site-packages\comtypes\GUID.py", line 78, in from_progid
    _CLSIDFromProgID(str(progid), byref(inst))
  File "_ctypes/callproc.c", line 948, in GetResult
OSError: [WinError -2147221005] 
br />

RE: ETABS v18 API - Cannot attach python with etabs

(OP)

this is the error i get from the post i mentioned

CODE --> python

Traceback (most recent call last):
  File "C:/Users/..../AppData/Local/Programs/Python/Python38-32/Lib/site-packages/comtypes/123.py", line 6, in <module>
    EtabsObject=comtypes.client.GetActiveObject("CSI.ETABS.API.ETABSObject")
  File "C:\Users\.....\AppData\Local\Programs\Python\Python38-32\lib\site-packages\comtypes\client\__init__.py", line 1248, in GetActiveObject
    oledll.oleaut32.GetActiveObject(byref(clsid), None, byref(p))
TypeError: byref() argument must be a ctypes instance, not 'str' 

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