pdb with emacs

[Yuri Shtil]

Hi,

I am trying to learn python and use the gud/pdb from emacs. The
functionality that I am used to under gud/gdb and gud/perldb is missing, or
I don't know how to make it work.
Specifically: when I start pdb on a script file, the source does not show in
an another window as it does with perldb and gdb. If I bring it up in an
another window,
the ^X SPC set a break, but the subsequent gud-next commands do not move the
execution cursor in the source file window.

Any help will be greatly appreciated.