python-2.7 , How to check if a value entered is an integer or string when using input

How to check if a value entered is an integer or string when using input


Tag: python-2.7

I wrote a program where you guess a randomly generated number between 1 and 100:

from random import randint
print 'Guess a number between 1 and 100'

while play=='y':
    x = randint(1,100)
    while guess != x:
        guess=input('Guess: ')
        if guess < x:
            print 'Higher'
        if guess > x:
            print 'Lower'
    print 'You got it! Good Job! The number was ' + str(x)
    play=raw_input('Would you like to play again(y/n)?: ')

raw_input("Press <enter> to exit")

when the user enters a guess that is not an integer how do I print That is not a number, then allow them to continue guessing?


Use a while True loop to repeat the question until it breaks. Only way to break the loop is if try does not raise a ValueError. int() raises an error when it gets something like 'hello' or '1.2'.

Also, use raw_input instead of input (note: raw_input assigns a string to guess).

while True:    
    guess=raw_input('Guess: ')
    except ValueError:
        print '\nNot an int, try again.' 

More specifically, insert this after while guess != x: and before if guess < x.


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