Error 1672 Unknown Python error

[mkh_1064]

Hello dfousek,  thank you!  Good luck resolving your issues, and please update with any new insights.  We have since found similar issues with other Python libraries and LabVIEW in other applications, though we are still trying to ascertain the exact dependency requirements.

[Ajay_MV]

I had similar error, eventually changing the directory to full python.exe path in Python Open session fixed that error in my case. However document says we need to provide the directory.  In my case specifically I was using embedded python.

[RamonDätwyler]

I've currently the same issue with the Python node, as you had, but in LabVIEW 2025 and Python 3.12 (64-Bit). I sporadically get error 1672 when calling the same function through the Python node in a loop. Sometimes it takes an hour to produce the error, sometimes even days. Once the error occurs it will never resolve unless I close and reopen the Python session.

I'm just wondering whether you could finally resolve the issue and how?

Thanks for a short feedback.