Python-сообщество

 llist01 = open('list01.txt','a')
 print (llist01)
 llist01.append(int(input()))

 with open('list01.txt') as fp:
    for line in iter(fp.read, ''):
        print(line)
f = open('list01.txt', 'a')
i = input(':')
f.write('\n' + i)
f.close()
#Проверка записи.
with open('list01.txt') as fp:
    for line in iter(fp.read, ''):
        print(line)