[split] Very basic coding issue

[buran]

actually it's better to have minimal number of lines in the try block, i.e. where you expect the error. Also, the input must be inside the loop (otherwise, why would you have a loop at all, if you break out in any case):

while True :
    age = input('please enter your age: ')
    try:
        age = int(age)
    except ValueError:
        print('that can\'t be your age')
        continue
    if age > 0 and age < 90:
            print("You are", age, "years old!")
    elif age > 90:
        print('you are too old!')
    break

or using else

while True :
    age = input('please enter your age: ')
    try:
        age = int(age)
    except ValueError:
        print('that can\'t be your age')
    else:
        if age > 0 and age < 90:
                print("You are", age, "years old!")
        elif age > 90:
            print('you are too old!')
        break