script.py

objects = ["person", "ball", "bottle", "book"]
import time
current_index = 0
def write_to_file(obj_name):
  time.sleep(1)
  with open('./label.txt', 'w') as f:
    f.write(obj_name)
while True:
  a = str(input())
  if a == r'':
    try:
      write_to_file(objects[current_index])
      current_index+=1
    except:
      print("use manual")
  elif a == 'p':
    write_to_file("person")
  elif a == 'a':
    write_to_file("ball")
  elif a == 'b':
    write_to_file("bottle")
  elif a == 'c':
    write_to_file("book")
  elif a == 'm':
    write_to_file("cell phone")
  elif a == 'w':
    write_to_file("pen")
  else:
    write_to_file(a)