emacs python debugging: pydb or pdb fringe interaction

[Paul Rudin]

Rob Wolfe <rw at smsnet.pl> writes:

> Paul Rudin <paul.rudin at ntlworld.com> writes:
>
>> Unfortunately this doesn't make any difference for me, with either
>> emacs 22 or 21. I guess I'll just have to dig deeper into the code. 
>
> So what happens after M-x pdb?

Everything works as it should, except for the interaction with the
fringe. I can't set breakpoints by clicking in the fringe, and they're
not displayed in the fringe. The only thing that is displayed in the
fringe is the little triangle indicating the current line.