[Python-ideas] Negative limit for traceback.*

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