code: def hump_to_underscore(name):
      
      new_name = ''
  
      pos = 0
      for c in name:
          if pos == 0:
              new_name = c.lower()
          elif 65 <= ord(c) <= 90:
              new_name += '_' + c.lower()
              pass
          else:
              new_name += c
          pos += 1
          pass
      return new_name
docs: Convert Hump style to underscore
  
      :param name: Hump Character
      :return: str