Problem: https://gist.github.com/tonidy/cd9e1783b75bfe9b195a55f9424d613a

ez_pattern.py

def ez_pattern(n, current=1): 
  if n == current: 
    __ez_pattern_mid(n, current)
  else:
    __ez_pattern_top(current, n)
    ez_pattern(n, current + 1)
    __ez_pattern_bot(current, n)

def __get_mult(printed_char, n):
  div_printed_char = printed_char // 4
  mod_printed_char = printed_char % 4
  return div_printed_char + (1 if mod_printed_char != 0 else 0) # can simplify to `div_printed_char + mod_printed_char != 0`

def __ez_pattern_mid(printed_char, n):
  mult = __get_mult(printed_char, n)
  printed_code_left = (["x", " ", "o", " "] * mult)[slice(printed_char)]
  printed_code_right = (["x", " ", "o", " "] * mult)[slice(printed_char - 1)]
  printed_code_right.reverse()
  printed_code = printed_code_left + printed_code_right
  print(''.join(printed_code))


def __ez_pattern_top(printed_char, n):
  mult = __get_mult(printed_char, n)
  printed_code = (["x", " ", "o", " "] * mult)[slice(printed_char)]
  printed_code.reverse()
  print(" " * (n - 1), end='')
  print(''.join(printed_code))
  

def __ez_pattern_bot(printed_char, n):
  mult = __get_mult(printed_char, n)
  printed_code = (["x", " ", "o", " "] * mult)[slice(printed_char)]
  print(" " * (n - printed_char), end='')
  print(''.join(printed_code))
  
ez_pattern(10)