new_contents: #Kunal Gautam
  #Codewars : @Kunalpod
  #Problem name: Split Strings
  #Problem level: 6 kyu
  
  def solution(s):
      return [s[i:i+2] for i in range(0, len(s), 2)][:-1] + [s[-1:]+'_'] if len(s)%2 else [s[i:i+2] for i in range(0, len(s), 2)]
  
subject: Create split_strings.py