45 def print_tb(tb, limit=None, file=None):  argument
53     print_list(extract_tb(tb, limit=limit), file=file)
55 def format_tb(tb, limit=None):  argument
57     return extract_tb(tb, limit=limit).format()
59 def extract_tb(tb, limit=None):  argument
72     return StackSummary.extract(walk_tb(tb), limit=limit)
104 def print_exception(exc, /, value=_sentinel, tb=_sentinel, limit=None, \  argument
119     te = TracebackException(type(value), value, tb, limit=limit, compact=True)
124 def format_exception(exc, /, value=_sentinel, tb=_sentinel, limit=None, \  argument
135     te = TracebackException(type(value), value, tb, limit=limit, compact=True)
177 def print_exc(limit=None, file=None, chain=True):  argument
179     print_exception(*sys.exc_info(), limit=limit, file=file, chain=chain)
181 def format_exc(limit=None, chain=True):  argument
183     return "".join(format_exception(*sys.exc_info(), limit=limit, chain=chain))
185 def print_last(limit=None, file=None, chain=True):  argument
191                     limit, file, chain)
197 def print_stack(f=None, limit=None, file=None):  argument
206     print_list(extract_stack(f, limit=limit), file=file)
209 def format_stack(f=None, limit=None):  argument
213     return format_list(extract_stack(f, limit=limit))
216 def extract_stack(f=None, limit=None):  argument
227     stack = StackSummary.extract(walk_stack(f), limit=limit)
339     def extract(klass, frame_gen, *, limit=None, lookup_lines=True,  argument
352         if limit is None:
353             limit = getattr(sys, 'tracebacklimit', None)
354             if limit is not None and limit < 0:
355                 limit = 0
356         if limit is not None:
357             if limit >= 0:
358                 frame_gen = itertools.islice(frame_gen, limit)
360                 frame_gen = collections.deque(frame_gen, maxlen=-limit)
489     def __init__(self, exc_type, exc_value, exc_traceback, *, limit=None,  argument
503             walk_tb(exc_traceback), limit=limit, lookup_lines=lookup_lines,
537                         limit=limit,
556                         limit=limit,