On Fri, Jul 18, 2008 at 4:21 PM, mark floyd <[EMAIL PROTECTED]> wrote:
> I'm new to Python and have been doing work converting a few apps from Perl
> to Python. I can not figure out the comparable Python structures for
> multi-variable for loop control.
>
> Examples:
>
> # In Perl
> for($i = 0, j = 0; $i < I_MAX && $j < J_MAX; $i+=5, $j += 10)
> {
> ..... do something
> }
>
> // In Java
> class test {
> public static void main(String[] args){
> int i = 0;
> int j = 1;
> for(i=1, j = 0; i<11 && j < 10; i++, j++){
> System.out.println("I is: " + i);
> System.out.println("J is: " + j);
> }
> }
> }
>
>
> // In C
> #include <stdio.h>
> int main()
> {
> int j = 0;
> int k = 0;
>
> for(j = 0, k = 0; j < 5 && k < 10; j++, k++) {
> printf("J = %d\n", j);
> printf("k = %d\n", k);
> }
>
> return 0;
> }
>
> I spent a good part of yesterday looking for a way to handle this style for
> loop in Python and haven't been able to find an appropriate way to handle
> this control style. We have this style for loop all over the place and not
> being able to find a similar structure in Python could be a problem. Any
> pointers to a Python equivalent structure would be much appreciated
>
> - Mark
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
Ops, sorry, sent only to Mark.
Here is the asnwer again:
for i, j in zip(range(0, I_MAX, 5), range(0, J_MAX, 10)):
do_stuff(...)
--
Eduardo de Oliveira Padoan
http://www.petitiononline.com/veto2008/petition.html
http://djangopeople.net/edcrypt/
http://whoisi.com/p/514
http://pinax.hotcluboffrance.com/profiles/edcrypt/
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