Try the following in the Python startup script:

import fmeobjects
fmeobjects.FMELogFile().silent(True)

Testing with FME 2025.0 I only get the lines up until the startup script is executed, then only a single line at the end stating the the translation was successful.

Documentation: https://docs.safe.com/fme/html/fmepython/api/fmeobjects/_log/fmeobjects.FMELogFile.silent.html

Hi ​@david_r,

Thanks for the fast responce, this works in Form like a charm now….Is it possible to implement it in a linked transformer?  (no startup script option there)

Cheers,

Itay

I guess you could put it in a PythonCaller, just be aware that it’s a global setting that will influence the entire workspace execution, and probably not just the linked transformer (not tested).

You can set .silent(False) to re-activate logging.

HI ​@david_r, 

Unfortunately this does not work since the workspace is already initiated and therefore cannot be set to ‘silence’ the logfile. I don’t know if there is a way to do this at all, I will settled for encrypting the logfile but then again this might also prove to be beyond the current capabilities.

Itay

That sounds unexpected. My understanding is that you should be able to silence and un-silence the log at any point during the translation.

Hi ​@david_r,

I would gladly be proven wrong this would be the best solution for me.