Tornado note, tornado

Tornado note, tornado

In the Tornado front-end Page Template, Tornado provides some object aliases to quickly access objects. For specific definitions, refer to the Tornado official documentation!

Here I want to process the RequestHandler object that Handler points! However, I found the following statement in Tornado's Blog Demo:

1 <title> 2 {escape (handler. settings ["blog_title"])} 3 </title>

However, it is strange that RequestHandler does not have the settings attribute. The Application object (Requestion. application) associated with RequestHandler has the setting attribute!

 

Later I reviewed the document and found that it was another alias (URL ):

RequestHandler. settingsAn alias for self. application. settings.

 

Handler points to RequestHandler

And RequestHandler. settings points to self. application. settings.

All handler. settings point to RequestHandler. application. settings!

 

OK, That's all.