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Python Python Basics (2015) Number Game App Number Game Introduction

Arikaturika Tumojenko
Arikaturika Tumojenko
8,897 Points

ValuerError: invalid literal for int() with base 10: '' meaning?

So, this is my code:

# generate a random number between 1 and 10
secret_num = random.randint(1, 10)

while True:
    # get a number guess form the player
    guess = int(input("Guess a number between 1 and 10: "))

    # compare guess to secret number
    if guess == secret_num:
        print("Your guess is correct! My number was {}".format(secret_num))
        print("Ups, your guess is incorrect! Try again!")

The only difference between what Kenneth wrote and what I wrote is that I added "continue" in the else statement. I repeatedly entered number 5 in order to guess the name and after a few times I got this error:

"ValuerError: invalid literal for int() with base 10:"

The program stopped working afterwards. Does anyone know what does it mean and why I got this error?

2 Answers

A non-integer was entered. When I ran your code it ran fine, but when I hit enter without a number first. ValueError: invalid literal for int() with base 10: '' At the end of my error is an empty string, when I enter + I got : ValueError: invalid literal for int() with base 10: '+'. I hope this helps find what happened.

Steven Parker
Steven Parker
225,770 Points

My guess is that while you "repeatedly entered number 5", you accidentally entered another non-numeric character instead or along with it. That would cause that specific error and stop the program.

The "continue" at the end is not needed, but doesn't cause any issues.