I like this. It's kind of sad that when the limit causes truncation of the traceback it drops the most recent frames, which might give a hint as to what happens, and keeps the oldest frames, which are usually less interesting (I know my program started at main() :-).

On Sun, Aug 24, 2014 at 10:48 AM, Thomas Allen <jsbfox@gmail.com> wrote:

I'd like to propose adding the ability to extract last n stack trace
entries from a traceback using functions from traceback module. Simply
put, passing limit=-n would make functions to return (or print or
yield) last abs(n) entries. No-brainer implementation for extract_tb:

    extracted = list(_extract_tb_iter(tb, limit=(limit, None)[limit < 0]))
    if limit is not None and limit < 0:
        return extracted[limit:]
    return extracted

The motivation: http://stackoverflow.com/q/25472412/2301450
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