func_code: def search(str, letter):
      i = 0
      while i < len(str):
          if letter == str[i]:
              break
              print('True')
          else:
              print('False')
annotation: def search(str, letter):
      i = 0
      while i < len(str):
          if letter == str[i]:
              return True
          i += 1
      return False
  