Twisted (or for loops ?) madness

[looping]

On Oct 15, 9:46 am, looping <kad... at gmail.com> wrote:
> l = [ct1, ct2, ct3]
> for c in l:
>     d.addCallback(lambda result: c.compile())
>
> reactor.callLater(20, reactor.stop)
> reactor.run()
>
> Output:
>
> Compile : *OBJECT 1*
> <__main__.CompilerThread object at 0x00BAD030>
> Start : *OBJECT 1*
> Compiler result : *OBJECT 1* *OBJECT 1*
> Compile : *OBJECT 3*
> <__main__.CompilerThread object at 0x00CD9470>
> Start : *OBJECT 3*
> Compiler result : *OBJECT 3* *OBJECT 3*
> Compile : *OBJECT 3*
> <__main__.CompilerThread object at 0x00CD9470>
> Start : *OBJECT 3*
> Compiler result : *OBJECT 3* *OBJECT 3*
>
> OBJECT 3 run 2 times and OBJECT 2 never ?!?
>
> Any idea ? Maybe something related to Threads ?
> Thanks for your help.

After further tests, it look like it is the lambda that cause the
problem:
-Adding a parameter result to compile(self, result)
-Changing d.addCallback(lambda result: c.compile()) for
d.addCallback(c.compile)

And everything run fine.

Why lambda doesn't work ? (variable scope problem ?)