Python code challenge lists explanation

Hi! I’m still new to the site and I don’t know how to properly navigate through the forum. I’m very sorry if this has been answered already. I was just wondering if anyone can explain to me how this code works? Thank you!

def middle_element(lst):
if len(lst) % 2 == 0:
sum = lst[int(len(lst)/2)] + lst[int(len(lst)/2) - 1]
return sum / 2
else:
return lst[int(len(lst)/2)]

print(middle_element([5, 2, -10, -4, 4, 5]))

Instruction: create a function called middle_element that has one parameter named lst .

If there are an odd number of elements in lst , the function should return the middle element. If there are an even number of elements, the function should return the average of the middle two elements.

Hello @eight8, welcome to the forums! !
I (and others) answered this question here:

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