According to https://bugs.launchpad.net/python-mode/+bug/1207470 this bug was fixed in version 6.1.2 of python-mode.el. I am trying to run 6.1.3 and am running into it. I back dated to 6.1.2 and still see it there. I am running GNU Emacs 23.3.1.
Its possible that something I'm doing it causing it, but I have no idea what. I can start emacs with no init file, load python mode, hit enter and I get the error. Has anyone else experienced this? I am sure that Andreas Roehler (the maintainer of python-mode.el) fixed it, but am thinking that it somehow didn't make it into the released code. Frank -- -- https://mail.python.org/mailman/listinfo/python-list