It works now.
Thanks for your support!
Regards,
Christophe

Hi Dirk,
Thanks for your reply
The output of piTest -d displayes the following ...
pi@RevPi20977:~ $ piTest -d
Found 2 devices:

Address: 0 module type: 95 (0x5f) RevPi Core V1.2
Module is present
input offset: 0 length: 6
output offset: 6 length: 5

Address: 32 module type: 96 (0x60) RevPi DIO V1 ...

Hi Dirk,

I have more or less the same problem.
For one or other reason I can not communicate to the DIO module in python.
I get the following error when try to read or write to the IO

Installed the following :
sudo apt-get update
sudo apt-get upgrade -y

sudo apt-get update
sudo apt-get install ...