Calculate the median of a series of numbers

median.py

def median(vector):
    sorted_vector = sorted(vector)
    vector_length = len(vector)
    middle = vector_length // 2
    if vector_length % 2 != 0:
        return sorted_vector[middle]
    else:
        return (sorted_vector[middle] + sorted_vector[middle - 1]) / 2
​
    
x = [3, 5, 9, 0, 2]
median(x) # 3