Generátor hviezd

n = int(input("Zadaj n: "))
for index in range(1,n+1):
    print("*"*index)
for index in range(1,n+1):
    print(" "*(n+1-index)+"*"*index)
z = (1+(n-1)*2)
for index in range(1,n+1):
    x = (1+(index-1)*2)
    y = int((z-x)/2)
    print(" "*y+"*"*x+" "*y)
for index in range(1,n+1):
    x = (1+(index-1)*2)
    y = int((z-x)/2)
    if index == 1 or index == n:
        print(" "*y+"*"*x+" "*y)
    else:
        print(" "*y+"*"+" "*(x-2)+"*"+" "*y)