Why not use a FeatureReader?

I doesn't work. I'm with Safe to see why but for the time being we don't know why i doesn't work. That's why I asked myself if it was possible to replace the FeatureReader by a pythoncaller

I would definitely recommend getting the regular reader/writer mechanisms in FME to work, because everything else is going to be a workaround and somewhat more of a hassle to maintain.

That said, it is possible to use Python-specific database modules to read directly from the underlying SDE database (e.g. Oracle or PostGIS), but you need to know what you're doing and dealing with the geometries is a bit of a hassle. I would definitely not recommend going that route unless you have a very specific reason and you know the why's and how's.

ok thank you david. I thought that was easier but ok i will wait a answer from Safe.

I think that is the best long-term solution, for sure.