How can I validate user input in Python?

How can I validate user input in Python?

You can use built-in functions like input() along with conditionals to validate user input. What type of input are you looking to validate?

I want to ensure the input is an integer.

You can use a loop to repeatedly ask for input until the user provides a valid integer. Here's a simple example:

while True:
    user_input = input('Please enter an integer: ')
    if user_input.isdigit():
        valid_input = int(user_input)
        break
    else:
        print('Invalid input. Try again.')

What if I want to validate a range of integers?

You can modify the loop to check if the integer falls within a specific range. For example:

while True:
    user_input = input('Enter an integer between 1 and 10: ')
    if user_input.isdigit():
        valid_input = int(user_input)
        if 1 <= valid_input <= 10:
            break
        else:
            print('Input out of range. Try again.')
    else:
        print('Invalid input. Try again.')