if the input is not number, let user input again

[menator01]

Another way. Modified code a little.

#! /usr/bin/env python3.8

while True:
    try:
        my_name = input('What is your name: ')
        if my_name.isdigit():
            print(f'{my_name} is a number. Please use letters for a name.')
            continue
        else:
            print(f'Your name is {my_name}. It\'s nice to meet you')
            print(f'The length of your name is {len(my_name)} letters.')
            break
    except ValueError as error:
        print(f'Error: {error}')
        break

while True:
    try:
        my_age = input(f'{my_name.title()}, what is your age: ')
        if my_age.isalpha():
            print(f'{my_age} is not allowed in age')
            continue
        else:
            age = int(my_age) + 1
            print(f'{my_name.title()} will be {age} next year.')
            break
    except ValueError as error:
        print(f'Error: {error}')
        break

Output:
What is your name: john
Your name is john. It's nice to meet you
The length of your name is 4 letters.
John, what is your age: p
p is not allowed in age
John is your age: 15
John will be 16 next year.