Hi Francesco, I'm very sorry, this bug was my fault. I have installed some gems globally (in /var/lib/gems/3.1.0/). The library hhtpclient 2.8.3 was also installed as a gem. And since I uninstall it your little script works. So the "bug" is solved. I should have started with that.
I installed again apt-listbugs 0.1.42 to check it works. I apologize to waste your time. Thanks for your help. Best regards. -- Karine Crévecœur
