[Twisted-Python] How can I change the default behaviour?

[Christopher Armstrong]

For this particular example, I would suggest just putting them in a
single method, since request.write doesn't return a Deferred and you
don't need to wait for anything before doing the setHeader.

def gotResult(html):
    request.write(html)
    request.setHeader(key, value)
d.addCallback(gotResult)

In the general case, though, you can do something like

def gotResult(r):
    request.write(r)
    return r
d.addCallback(gotResult)
d.addCallback(anotherCallback)

On 5/9/05, Leslie Huyan <leslie at exoweb.net> wrote:
> Hi:
>     I encountered one problem to dig into twisted.
>     If I have 2 methods in the call back chain, however I don't want the
> result of the first one to pass to the second one as its arguments, what
> should I do?
>     For example:
>     defer.addCallbacks(request.write, html)
>     defer.addCallbacks(request.setHeader, key, value)
> 
> Thank you.


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