> > self.call(<procedure>, <arg>)
> > self.call("square", 6).addCallback(self.call,
> > "sqrt").addCallback(self.show)
>
> The easiest way to do this is probably:
>
> from functools import partial
> self.call("square", 6).addCallback(partial(self.call,
> "sqrt")).addCallback(self.show)
Thanks alot! Did not knew about partial .. I checked the solution you proposed:
works.
It rectifies the arg order, but introduces more boilerplate to write (and making
usage convenient is my goal).
===
In the meantime, I've come up with 3 others options:
No chaining (no problem here):
self.call("add", 23*23, 5).addCallback(self.show)
Chaining Option 1:
self.call("square", 23).addCallback(self.rcall, "add",
5).addCallback(self.show)
Chaining Option 2:
self.call("square", 23).addCallback(lambda res: self.call("add", res,
5)).addCallback(self.show)
Chaining Option 3:
self.call("square", 23).call("add", 5).addCallback(self.show)
Option 1
=======
Makes use of rcall() vs call() where rcall() does the reordering of arguments
def rcall(self, *args):
a = []
a.append(args[1]) # procedure ID
if args[0]:
a.append(args[0]) # result from previous deferred
a.extend(args[2:]) # new args
return self.call(*a)
Pro: terse, can handle callback&errback
Con: user needs to remember to use rcall() not call()
Option 2
======
Similar to yours .. just using lambda.
Pro: standard Python (as yours), can handle callbacks&errbacks
Con: verbose
Option 3
=======
Makes use of
class AutobahnDeferred(Deferred):
def call(self, *args):
return self.addCallback(self.protocol.rcall, *args)
Pro: most terse
Con: only supports single callback no errback
====
Currently my thinking is: why not provide all variants?
Anything why I shouldn't do?
> mithrandi, i Ainil en-Balandor, a faer Ambar
ok. nice;) but what does it mean?
>
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