looking for a neat solution to a nested loop problem

Oscar Benjamin oscar.benjamin at bristol.ac.uk
Mon Aug 6 12:00:29 EDT 2012


Are you familiar with the itertools module?

itertools.product is designed for this purpose:
http://docs.python.org/library/itertools#itertools.product

Oscar.

On 6 August 2012 16:52, Tom P <werotizy at freent.dd> 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? I realize I
> can do things like use a variable for k in range(10000): and then derive
> values for i and j from k, but I'm wondering if there's something less
> clunky.
> --
> http://mail.python.org/**mailman/listinfo/python-list<http://mail.python.org/mailman/listinfo/python-list>
>
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