Connect to Session fails

[max3-2]

Hi,

I can't connect to a running session. When calling session.Session(), an exception occurs. Its traceable to session.py line 85 ( _connect_client() ) and from there on to line 137 ( self.mu.Connect() ). Also reproducable by going step by step. Comsol installed, the server starts and waits, but the .Connect() fails with

APIError: Ausnahmefehler aufgetreten: (0, 'ComsolCom', 'Die COMSOL API kann nur in einem Excel Add-In laufen.', None, 0, -2146233088)

To translate, something like

APIError: Exception occured: ((0, 'ComsolCom', 'COMSOL API can only run in Excel Add-In.', None, 0, -2146233088)

[gingerBill]

Hello @fellobos

I am also trying to use this library too and I am getting the same error message. I am trying to find out where you got the name for the win32com dispatch name for the comsol thing.

I am currently using comsol 4.2 not 5.3.

I have used the combrowser in python to look for the comsol application but I cannot find it whatsoever.

How did you find how to do this?

Regards,
Bill

[fellobos]

Hello @gingerBill,

the ComsolAPI internally checks that Comsol is called via Excel. In my Comsol 5.3 installation I am using a modifed version of the ComsolAPI.dll where this check is omitted. Sorry, I forgot to mention that in the documentation.

As a workaround, the error should not occur if you rename your python.exe to Excel.exe...

I have found the dispatch name via the pywin32 combrowser (makepy -i ???). As additional resource I can recommend the book "Python Programming On Win32" from Mark Hammond.

Best regards,
Florian

[gingerBill]

Hello @fellobos,

My issue is that I cannot seem to find the name for the comsol thing at all. I don't think comsolcom.* is correct for the version I am working on. I cannot find Comsol whatsoever through the combrowser (which I tried beforehand).

Thank for the reply and sorry for the confusion.

Regards,
Bill