46 def print_tb(tb, limit=None, file=None):  argument
47     """Print up to 'limit' stack trace entries from the traceback 'tb'.
49     If 'limit' is omitted or None, all entries are printed.  If 'file'
56     if limit is None:
58             limit = sys.tracebacklimit
60     while tb is not None and (limit is None or n < limit):
74 def format_tb(tb, limit = None):  argument
75     """A shorthand for 'format_list(extract_tb(tb, limit))'."""
76     return format_list(extract_tb(tb, limit))
78 def extract_tb(tb, limit = None):  argument
79     """Return list of up to limit pre-processed entries from traceback.
82     'limit' is omitted or None, all entries are extracted.  A
89     if limit is None:
91             limit = sys.tracebacklimit
94     while tb is not None and (limit is None or n < limit):
110 def print_exception(etype, value, tb, limit=None, file=None):  argument
111     """Print exception up to 'limit' stack trace entries from 'tb' to 'file'.
125         print_tb(tb, limit, file)
130 def format_exception(etype, value, tb, limit = None):  argument
141         list = list + format_tb(tb, limit)
225 def print_exc(limit=None, file=None):  argument
226     """Shorthand for 'print_exception(sys.exc_type, sys.exc_value, sys.exc_traceback, limit, file)'.
233         print_exception(etype, value, tb, limit, file)
238 def format_exc(limit=None):  argument
242         return ''.join(format_exception(etype, value, tb, limit))
247 def print_last(limit=None, file=None):  argument
249     sys.last_value, sys.last_traceback, limit, file)'."""
255                     limit, file)
258 def print_stack(f=None, limit=None, file=None):  argument
262     stack frame at which to start. The optional 'limit' and 'file'
270     print_list(extract_stack(f, limit), file)
272 def format_stack(f=None, limit=None):  argument
273     """Shorthand for 'format_list(extract_stack(f, limit))'."""
279     return format_list(extract_stack(f, limit))
281 def extract_stack(f=None, limit = None):  argument
285     optional 'f' and 'limit' arguments have the same meaning as for
295     if limit is None:
297             limit = sys.tracebacklimit
300     while f is not None and (limit is None or n < limit):