Lets say I have the input statement:
num = input(Press 1 or 2)
How do I create an error message that repeats so that if they pick an option thats not given such as 3
If num != 1 and num != 3:
num = input(invalid key. Try again)
except when the error message comes up it accepts invalid inputs
I just used a while statement
Recall that it takes a str value as an argument.
input("string value")
Using a while loop with a couple of prewritten prompts helps keep the inputs contained.
prompt = ['Enter 1 or 2: ', 'Invalid input... Enter 1 or 2: ']
i = 0
num = '0' # note that an empty string won't work
while num not in '12':
num = input(prompt[i])
i = 1
num = int(num)
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