有没有关于酒瓶在请求挂钩前的执行命令?

对。钩子是按其定义在代码库中的顺序执行(触发)的。

def add_hook(self, name, func): 
    if name in self.__hook_reversed:
        self._hooks[name].insert(0, func)        
    else:
        self._hooks[name].append(func)
def trigger_hook(self, __name, *args, **kwargs):
    """ Trigger a hook and return a list of results. """
    return [hook(*args, **kwargs) for hook in self._hooks[__name][:]]