Yes I used the packet manager to download it. I tried the version you attached and the problem is the same: if I launch python command as root I get this message: "QGtkStyle cannot be used together wit GTK_Qt engine. Segmentation fault". If I launch python command as normal user I get this (with your version and also with the one I've previously installed): Traceback (most recent call last): File "/home/opt/www2sms/www2sms.py", line 451, in <module> ui = MainWindow() File "/home/opt/www2sms/www2sms.py", line 55, in __init__ self.my_phone_book = self.get_contacts() File "/home/opt/www2sms/www2sms.py", line 200, in get_contacts contact_and_numbers = [item.decode('utf-8')] AttributeError: 'list' object has no attribute 'decode' Hope it will help, thanks!