i am getting “internal check system error”

Question

I have defined a variable in the program but it is not working. The user will input the number to view animals and enter "exit" to end the program. The program will run in a loop.

animals = [camel, lion, deer, goose, bat, rabbit]
x = input("Please enter the number of the habitat you would like to view: ")
while True: 
    if x != ("exit"):
         print(animals[(int(x))])
    else: x == ("exit")
    print("See you later!")
exit

Answer 1

This will work. Your list elements should be in string format " "

animals = ["camel","lion","deer", "goose", "bat", "rabbit"]
x = int(input("Please enter the number of the habitat you would like to view: "))
while True: 
    if x != ("exit"):
         print(animals[x])
         break
    elif (x == ("exit")):
        print("See you later!")

Answer 2

animals = ["camel", "lion", "deer", "goose", "bat", "rabbit"]

In python , every string value should be written inside double or single quotes

In your code , your list elements were not in quotes.

But yes , its possible to have a list like yours. But then the python recognizes these as variables

From the code you have given , it is understandable that these variables are not assigned a value before

Thus you got the variable error

Answer 3

You have to take input inside the while loop otherwise it will continue printing, and you cannot able to input next time

animals = ["camel", "lion", "deer", "goose", "bat", "rabbit"]
while True:
    x = input("Please enter the number of the habitat you would like to view: ")
    if x != ("exit"):
         print(animals[(int(x))])
    else:
        x == ("exit")
        print("See you later!")
        break