class tracemalloc.Traceback
Sequence of Frame instances sorted from the most recent frame to the oldest frame.
A traceback contains at least 1 frame. If the tracemalloc module failed to get a frame, the filename "<unknown>" at line number 0 is used.
When a snapshot is taken, tracebacks of traces are limited to get_traceback_limit() frames. See the take_snapshot() function.
The Trace.traceback attribute is an instance of Traceback instance.
format(limit=None)
Format the traceback as