[Tutor] Multiple Simultaneous Loops

[Pierre Barbier de Reuille]

You have a much simpler solution !
As this is a most common task to iterate on a sequence while keeping
track of the index, there is an object just for that :

for i,x in enumerate(iterable):
  # Here "i" is the index and "x" the element

Also, to get some "advance" iteration schemes, have a lot at the module
"itertools" ... there is a bunch of very usefull items in it (the most
usefull to me bzing "izip") !

Pierre

Pujo Aji a écrit :
> assume:
> you have two list with the same size
> L1 = [1,2,3]
> L2 = [11,22,33]
>  you can zip the L1 and L2 into L
> L = zip(L1,L2) # L = [(1,11),(2,22),(3,33)] 
>  then you can process:
> for x in L:
>  dosomething(x[0])...
>  dosomething(x[1])...
>  I'm not so sure about your problem but
> If you want to do something parallel processing then you should go to 
> threading or pyro.
>  Cheers,
> pujo
> 
> 

-- 
Pierre Barbier de Reuille

INRA - UMR Cirad/Inra/Cnrs/Univ.MontpellierII AMAP
Botanique et Bio-informatique de l'Architecture des Plantes
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