[yocto] Unable to get python3-multiprocessing working

[Benoit Rapidel]

Hello,

I have build a custom recipe with
RDEPENDS_${PN} = "python3 python3-multiprocessing python3-subprocess
python3-threading"
Everything builds fine but at runtime I get
"ImportError: No module named 'atexit'"

I tried to add python3-lang package to RDEPENDS which seems to provide
/usr/lib/python3.3/atexit.py.
This doesn't work and I can't find atexit.py in my rootfs.

Did I miss something ?

Regards

-- 
Benoit Rapidel