def print_exc(self, file=None):
        import linecache, traceback
        if self.src is not None:
            linecache.cache[dummy_src_name] = (len(self.src),
                                               None,
                                               self.src.split("\n"),
                                               dummy_src_name)
        # else the source is already stored somewhere else

        traceback.print_exc(file=file)
> (arithmetic-shift 1 10)
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/timeit.py/Timer.print_exc--crossover with--dataset/ETHPy150Open samth/pycket/pycket/test/test_arithmetic.py/test_shift