Cprod -- (writing this: itertools.product([0, 1], repeat=N )

dn PythonList at DancesWithMice.info
Tue May 21 18:44:44 EDT 2024


On 22/05/24 07:14, HenHanna via Python-list wrote:
> 
> How can i write this function Cprod (Cartesian Product) simply?
> 
>                  (writing this out: itertools.product([0, 1], repeat=N )
> 
> The value can be a list or a Tuple.
> 
>                  cprod([0, 1], 1) => ((0) (1))
> 
>                  cprod([0, 1], 2) => ((0,0) (0,1) (1,0) (1,1))
> 
> 
> 
> This works:
> 
>     def cprod(x, c):
>          if c==1: return [[i] for i in x]
>          Sub= cprod(x, c-1)
>          return [i  for F in x   for i in [[F]+R for R in Sub]]
> 
> 
> ---------- Is there another way to write [F]+R ???
> 
>                 Other ways to improve it?

https://python.readthedocs.io/en/stable/library/itertools.html#itertools.product

-- 
Regards,
=dn


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