pdb.py 文件源码

def _get_position_of_arg(self, arg):
        try:
            obj = self._getval(arg)
        except:
            return None, None, None
        if isinstance(obj, str):
            return obj, 1, None
        try:
            filename = inspect.getabsfile(obj)
            lines, lineno = inspect.getsourcelines(obj)
        except (IOError, TypeError) as e:
            print('** Error: %s **' % e, file=self.stdout)
            return None, None, None
        return filename, lineno, lines