Заполнение матрицы по образцу

import copy
 
n = 9
str = [ 1 for i in range(n) ]
matrix = [ copy.deepcopy( str ) ]
 
for i in range(( n - 1 ) // 2 + (n - 1) % 2):
    str[i] = str[n - i - 1] = 0
    matrix.append( copy.deepcopy( str ) ) 
 
rev_matrix =  matrix[ ( n - 1 ) // 2 + (n - 1) % 2 - 1: : -1 ] 
matrix.extend( rev_matrix)
 
for i in range( ( n - 1 ) + (n - 1) % 2 + 1 ):
    print( matrix[i] )

n = 10;
maximum = None
 
row = []
for i in range(n):
    row.append("0")
matrix = []
for i in range(n):
    matrix.append(row[:])
 
for j in range(n):
    if j <= 6:
        maximum = j
    else:
      maximum = n - j
    for i in range(maximum):
      matrix[j][i] = "1"
      matrix[j][n - i - 1] = "1"
 
for row in matrix:
    for i in row:
        print(i, end = " ")
    print("\n")

def get_matrix(n):
    def get_row(m):
        return ([0]*m) + ([1]*(n-2*m)) + ([0]*m)
    return [get_row(m if m < (n - m) else n - m - 1) for m in range(n)]