Create an array in python from two different arrays with all possible combinations with having fixed-CodePudding

I am trying to get the combinations of the two arrays with a fixed selection from each array.

Arrays:

X = ['A','B','C','D','E']
Y = ['1','2','3','4']

My condition for selection will be Sx = 3 and Sy = 2 (the output should have 3 elements from X and 2 elements from Y which are fixed)

The output should be similar to this with all possible combinations

XY = [('A','B','C','1','2'),('B','C','D','2','3'),....)]

How can I do that?

CodePudding user response：

use itertools

combos1 = itertools.combinations(X,r=Sx)
combos2 = itertools.combinations(Y,r=Sy)
prod1 = [a b for a,b in itertools.product(combos1,combos2)]

this is computationally expensive ... it may take a while for big alphabets