[Tutor] Sorting more than one list

[Liam Clarke]

What's b.index(x) do?

I'm guessing the for a list Delta = ["a,"b","c"], you get 

Delta.index("b")

1

Am I right? 

On Apr 1, 2005 1:16 PM, py <py at runsun.info> wrote:
> 
> 
> An alternative way of doing this (if you have python 2.4): 
> 
> >>> ppl =   ['john', 'mary', 'lary', 'jane']
> >>> age =   [15, 30, 23, 25]
> >>> height= [160, 165, 178, 170]
> 
> >>> sortby = lambda a, b: [a[b.index(x)] for x in sorted(b)]
> >>> sortby(ppl, age)
> ['john', 'lary', 'jane', 'mary']
> >>> sortby(ppl, height)
> ['john', 'mary', 'jane', 'lary'] 
> 
> >>> age    # age is not changed
> [15, 30, 23, 25] 
> 
>   
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> 
> 


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