cyclic crossover in genetic algorithm (python implementation)

[Mass17]

I have a python3 program that gives cycles for a given permutation. I want to know how to find a children out of it.

This is what I have to create a cycles;

def to_cycles(perm):
    pi = {i+1: perm[i] for i in range(len(perm))}
    cycles = []

    while pi:
        elem0 = next(iter(pi)) # arbitrary starting element
        this_elem = pi[elem0]
        next_item = pi[this_elem]

        cycle = []
        while True:
            cycle.append(this_elem)
            del pi[this_elem]
            this_elem = next_item
            if next_item in pi:
                next_item = pi[next_item]
            else:
                break

        cycles.append(cycle)

    return cycles
aa = to_cycles([4,1,6,2,3,5,8,9,7,10])
print("array: ", aa)
dicts = {}
keys = range(0, len(aa)-1)
for i in keys:
        dicts[i] = aa[i]
print(dicts)

Thanks for your input.