def distb(self, tb=None, file=None):
if tb is None:<EOL><INDENT>try:<EOL><INDENT>tb = sys.last_traceback<EOL><DEDENT>except AttributeError:<EOL><INDENT>raise RuntimeError("<STR_LIT>")<EOL><DEDENT>while tb.tb_next: tb = tb.tb_next<EOL><DEDENT>self.disassemble(tb.tb_frame.f_code, tb.tb_lasti, file=file)<EOL>
Disassemble a traceback (default: last traceback).