[Tutor] list comprehension problem

Emile van Sebille emile at fenx.com
Fri Jul 3 22:37:54 CEST 2009


On 7/3/2009 1:21 PM Kent Johnson said...
> On Fri, Jul 3, 2009 at 3:49 PM, Dinesh B
> Vadhia<dineshbvadhia at hotmail.com> wrote:
>> d = [0, 8, 4, 4, 4, 7, 2, 5, 1, 1, 5, 11, 11, 1, 6, 3, 5, 6, 11, 1]
>>
>> and we want:
>>
>> [0, 8, 12, 16, 20, 27, 29, 34, 35, 36, 41, 52, 63, 64, 70, 73, 78, 84, 95,
>> 96]
>> dd = [ sum(d[:j]) for j in range(len(d)) ][1:]
>>
>> gives:
>>
>> [0, 8, 12, 16, 20, 27, 29, 34, 35, 36, 41, 52, 63, 64, 70, 73, 78, 84, 95]
> 
> In [9]: [ sum(d[:j+1]) for j in range(len(d)) ]
> Out[9]: [0, 8, 12, 16, 20, 27, 29, 34, 35, 36, 41, 52, 63, 64, 70, 73,
> 78, 84, 95, 96]

So, did we get an 'A'...

Emile



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