# Combining sets/dictionaries

Mel mwilson at the-wire.com
Tue Sep 22 15:09:48 CEST 2009

```Alfons Nonell-Canals wrote:

> Hello,
> I have different sets/dictionaries/lists (whatever you want because I
> can convert them easily) and I would like to combine them. I don't want
> a consensus and something like it. I'd need to combine all elements of
> the first one with the all elements of the second one and third,... the
> numbers of dictionaries/sets/lists is variable as the number of elements
> for each one.
>
> For example, i have the following sets and I would like to obtain all
> possible combinations...
>
> ['I', 'O', 'N', 'P', 'S', 'C']
> ['I', 'O', 'N', 'P', 'S', 'C']
> ['I', 'O', 'N', 'P', 'S', 'C']
> ['I', 'N', 'P', 'S', 'C']
> ['I', 'N', 'P', 'S', 'C']
> ['F', 'I', 'L', 'O', 'N', 'P', 'S', 'R', 'C']
> ['I', 'O', 'N', 'P', 'S', 'C']
> ['I', 'O', 'N', 'P', 'S', 'C']
> ['F', 'I', 'L', 'O', 'N', 'P', 'S', 'R', 'C']
>
> And it should be flexible because as I've said, the number of
> dictionaries/lists/sets is not always the same, as the number of elements.
>
> I don't like to ask this kid of questions but... today I'm totally lost
> and I need it to close one part of a nice project...

Maybe a recursive function or generator:

Each item from the first list appended to each of the possible combinations
from the second through nth lists.

Mel.

```