Python - Is it possible to use a list as a condition for an if statement?

Question

I am in the process of learning Python and one of the exercises that I was tried to do was make a "guess the number" game. I made a very simple one, but now I want to take it a little bit further and set some boundaries for the inputs so that the program is error-proof. Here is my code:

# Guess the number game.
import random
print('Hello. What is your name?')
yourName = input() # collects user's name
solution = random.randint(1,20)
print('Well, ' + str(yourName) + ', I am thinking of a number between 1 and 20.')
acceptable = ['1','2','3','4','5','6','7','8','9','10','11','12','13','14','15','16','17','18','19','20'] # acceptable answers
def game():
 for attempts in range(1,6):
 print('Take a guess. You have ' + str(6 - attempts) + ' attempt(s) remaining')
 # try:
 guess = (input())
 while guess:
 if guess != acceptable:
 print("That is not a valid answer!")
 guess = (input())
 else:
 moveon()
def moveon():
 while guess != solution:
 if guess < solution:
 print('Your guess is too low. Try again.')
 elif guess > solution:
 print('Your guess is too high. Try again.')
 else:
 endofgame()
'''
 except ValueError:
 print('Please enter a guess that is a number.')
 attempts + 1 == attempts
'''
def endofgame():
 if guess == solution:
 print('You guessed it! It took you ' + str(attempts) + ' attempt(s)')
 playAgain()
 else:
 print('Game over! The number I was thinking of was ' + str(solution))
 playAgain()
# Option to play again with a new number
def playAgain():
 global solution
 print('Play again? Y/N')
 playAgain = input()
 if playAgain == 'Y':
 print('Okay, ' + str(yourName) + ', I have another number between 1 and 20.')
 solution = random.randint(1,20)
 game()
 else: print('Thanks for playing!')
# Start game
game()

So what I want to do is make sure that when the user is prompted to input a number between 1 and 20, entering answers like "22", "coffee" or "14.5" would be invalid and prompt them to try again and enter a valid answer. However, when I run this program right now, any answer that is entered is returned as invalid. How do I make it so that only certain answers are accepted, and others are not? I suspect that there is a way other than using a list that I do not know of yet. Thanks in advance!

Answer 1

You need to check if an item is not contained in a list, this is how we do it in Python:

if guess not in acceptable:

Answer 2

Instead of using if guess != acceptable you want to use if guess not in acceptable.

With python, you can check if an element exists inside of an array by using the in command.