def run(self, cmd, start_opts=None, globals_=None, locals_=None):
        """ Run debugger on string `cmd' using builtin function eval
        and if that builtin exec.  Arguments `globals_' and `locals_'
        are the dictionaries to use for local and global variables. By
        default, the value of globals is globals(), the current global
        variables. If `locals_' is not given, it becomes a copy of
        `globals_'.

        Debugger.core.start settings are passed via optional
        dictionary `start_opts'. Overall debugger settings are in
        Debugger.settings which changed after an instance is created
        . Also see `run_eval' if what you want to run is an
        run_eval'able expression have that result returned and
        `run_call' if you want to debug function run_call.
        """
        if globals_ is None:
            globals_ = globals()
        if locals_ is None:
            locals_ = globals_
        if not isinstance(cmd, types.CodeType):
            self.eval_string = cmd
            cmd = cmd+'\n'
            pass
        retval = None
        self.core.start(start_opts)
        try:
            retval = eval(cmd, globals_, locals_)
        except SyntaxError:
            try:
                exec(cmd, globals_, locals_)
            except DebuggerQuit:
                pass
            except DebuggerQuit:
                pass
            pass
        except DebuggerQuit:
            pass
        finally:
            self.core.stop()
        return retval
Run debugger on string `cmd' using builtin function eval
        and if that builtin exec.  Arguments `globals_' and `locals_'
        are the dictionaries to use for local and global variables. By
        default, the value of globals is globals(), the current global
        variables. If `locals_' is not given, it becomes a copy of
        `globals_'.

        Debugger.core.start settings are passed via optional
        dictionary `start_opts'. Overall debugger settings are in
        Debugger.settings which changed after an instance is created
        . Also see `run_eval' if what you want to run is an
        run_eval'able expression have that result returned and
        `run_call' if you want to debug function run_call.