[Twisted-web] Re: [Web-SIG] WSGI woes

[Donovan Preston]

On Sep 16, 2004, at 1:41 PM, Phillip J. Eby wrote:

>     resume = environ['wsgi.pause_output']()
>
> Where 'resume' is then a callback function that can be invoked to 
> resume iteration.  This keeps it to a single extension key, helps 
> ensure the correct sequence of actions, and makes it easier to 
> implement in some cases, while not making other cases any harder.

Well, I guess I sparked some discussion here. Great! I am +1 on the 
above construct, calling pause_output and yielding an empty string. I'm 
glad this technique came up because I hadn't paid enough attention to 
the environ dict and how it could be used to do something like this.

I think with servers providing a pause_output callable like this, 
asynchronous applications will be possible and the isolation between 
the layers can be preserved. I am going to try writing some code using 
this construct and provide further feedback after I do.

dp