HOTS: pattern program

pattern2.py

#for n==9
*             *             *
*            ***            *
*           *****           *
*          *******          *
*---------*********---------*
*          *******          *
*           *****           *
*            ***            *
*             *             *
#for n==5
*       *       *
*      ***      *
*-----*****-----*
*      ***      *
*       *       *


#here is the program

import math
n = int(input())
x = n
l1 = n + math.ceil(n/2)-1
l2 = n + math.ceil(n/2)-1
for i in range(1, x + 1, 2):
    print('*', end='')
    if(i==n):
        for _ in range(n):
            print('-',end='')
    else:
        for _ in range(l1):
            print(end=' ')
        l1-=1
    for j in range(i):
        print('*', end='')
    if (i == n):
        for _ in range(n):
            print('-', end='')
    else:
        for _ in range(l2):
            print(end=' ')
        l2 -= 1
    print('*',end='')
    print()
y=n-2
l3=n+1
l4=n+1
for i in range(y,0,-2):
    print('*',end='')
    for _ in range(l3):
        print(end=' ')
    l3+=1
    for j in range(i):
        print('*',end='')
    for _ in range(l4):
        print(end=' ')
    l4 += 1
    print('*',end='')
    print()

Please ignore the red boxes on the pattern