looking for a neat solution to a nested loop problem

[Grant Edwards]

On 2012-08-06, Tom P <werotizy at freent.dd> wrote:
> On 08/06/2012 06:18 PM, Nobody wrote:
>> On Mon, 06 Aug 2012 17:52:31 +0200, Tom P wrote:
>>
>>> consider a nested loop algorithm -
>>>
>>> for i in range(100):
>>>       for j in range(100):
>>>           do_something(i,j)
>>>
>>> Now, suppose I don't want to use i = 0 and j = 0 as initial values, but
>>> some other values i = N and j = M, and I want to iterate through all
>>> 10,000 values in sequence - is there a neat python-like way to this?
>>
>> 	for i in range(N,N+100):
>> 	    for j in range(M,M+100):
>> 	        do_something(i,j)
>>
>> Or did you mean something else?
>
> no, I meant something else ..
>
>    j runs through range(M, 100) and then range(0,M), and i runs through 
> range(N,100) and then range(0,N)

In 2.x:

    for i in range(M,100)+range(0,M):
        for j in range(N,100)+range(0,N):
            do_something(i,j)

Dunno if that still works in 3.x.  I doubt it, since I think in 3.x
range returns an iterator, not?

-- 
Grant Edwards               grant.b.edwards        Yow! I wish I was on a
                                  at               Cincinnati street corner
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