new_contents: import random
  
  def random_choice(p=0.5):
      """
      Return 'C' wit probability `p`, else return 'D'
  
      Emulates Python's random.choice(['C', 'D']) since it is not consistent
      across Python 2.7 to Python 3.4"""
  
      r = random.random()
      if r < p:
          return 'C'
      return 'D'
  
subject: Add missing file to git