طول آیتم های لیست

letter_list=[]
while True:
    item=input("enter the string data:  ")
    if item.isdigit():
        print("enter string data")
    else:
        letter_list.append(item)
        answer=input("finish?  Y or y for yes | N or n for no")
        if answer=="Y" or answer=="y":
            lenght_list=[]
            for letter in letter_list:
                lenght_list.append(len(letter))
            print(f"list now: {letter_list} \n  lenght of items in list {lenght_list}")
            break

        elif answer=="N" or "n":
            pass