Comment 4 for bug 627654

I wonder too. I've looked at the source package for 10.04 (Lucid) and that extra byte is not there. I've looked at /usr/lib/python2.6/dist-packages/twisted/protocols/telnet.py installed on my Lucid system, and that extra byte is not there either. Brian, is there any possibility that you edited that file accidentally, or installed twisted outside of the normal package management system?

Can you try this command:

sudo apt-get install --reinstall python-twisted-core

and let us know if that works for you or not?