I think the main reason is because sometimes,

the entires of our program is not a python file, it might be launch of a
docker image, a gunicorn application, even a background task etc. or it
might be wrapped by some 3rd launcher.

And sometimes it will coming through many steps before hit the break point.


Eli Zaretskii <eliz@gnu.org>于2019年10月8日 周二00:19写道：

> > From: Lawrence Liu <smartlitchi@gmail.com>
> > Date: Mon, 7 Oct 2019 12:33:17 +0800
> > Cc: Andrii Kolomoiets <andreyk.mad@gmail.com>, emacs-devel@gnu.org
> >
> > I am a full time python developer and seems in my case mostly I am using
> the way as below:
> >
> > insert a
> >
> > import pdb; pdb.set_trace();
> >
> > in my code bass and trigger the break point from other place (mostly
> browser) and wait for the break point
> > been hit.
>
> Any reason you don't use "M-x pdb" instead?
>
-- 
Best Regards
Lawrence