diamond without recursion

def diamond(rows):
    spaces = " " * (rows * 2)
    stars = "* "
    for _ in range(rows):
        print(f"{spaces}{stars}")
        spaces = spaces[2:]
        stars += "* * "
    for _ in range(rows + 1):
        print(f"{spaces}{stars}")
        spaces += "  "
        stars = stars[4:]

try:
    height = int(input('Enter height (>4 and odd): '))
    if not height > 4 or not height & 1:
        raise ValueError
except ValueError:
    print('That is not going to work')
    height = None

if height:
    diamond(int(height/2))