(f=None, limit=None)
return list
Extract the raw traceback from the current stack frame.

    The return value has the same format as for extract_tb().  The
    optional 'f' and 'limit' arguments have the same meaning as for
    print_stack().  Each item in the list is a quadruple (filename,
    line number, function name, text), and the entries are in order
    from oldest to newest stack frame.
Extract the raw traceback from the current stack frame.
Extract the raw traceback from the current stack frame .
def extract_stack(f=None, limit=None):
    """Extract the raw traceback from the current stack frame.

    The return value has the same format as for extract_tb().  The
    optional 'f' and 'limit' arguments have the same meaning as for
    print_stack().  Each item in the list is a quadruple (filename,
    line number, function name, text), and the entries are in order
    from oldest to newest stack frame.
    """
    if f is None:
        try:
            raise ZeroDivisionError
        except ZeroDivisionError:
            f = sys.exc_info()[2].tb_frame.f_back
    if limit is None:
        if hasattr(sys, 'tracebacklimit'):
            limit = sys.tracebacklimit
    list = []
    n = 0
    while f is not None and (limit is None or n < limit):
        lineno = f.f_lineno
        co = f.f_code
        filename = co.co_filename
        name = co.co_name
        linecache.checkcache(filename)
        line = linecache.getline(filename, lineno, f.f_globals)
        if line: line = line.strip()
        else: line = None
        list.append((filename, lineno, name, line))
        f = f.f_back
        n = n+1
    list.reverse()
    return list
def extract_stack ( f = None , limit = None ) : if f is None : try : raise ZeroDivisionError except ZeroDivisionError : f = sys . exc_info ( ) [ 2 ] . tb_frame . f_back if limit is None : if hasattr ( sys , 'tracebacklimit' ) : limit = sys . tracebacklimit list = [ ] n = 0 while f is not None and ( limit is None or n < limit ) : lineno = f . f_lineno co = f . f_code filename = co . co_filename name = co . co_name linecache . checkcache ( filename ) line = linecache . getline ( filename , lineno , f . f_globals ) if line : line = line . strip ( ) else : line = None list . append ( ( filename , lineno , name , line ) ) f = f . f_back n = n + 1 list . reverse ( ) return list