CODEWITHSUNDEEP
pythonpython-3.xnumbersuser-input
mrzippy01
mrzippy01

Reputation: 383

Input value between x and y

So I need to gather input from a user but I have to ensure that they can only enter a number between 1 and 0 before the program accepts their input. Here is what I've got so far:

def user_input():
    try:

        initial_input = float(input("Please enter a number between 1 and 0"))

    except ValueError:

        print("Please try again, it must be a number between 0 and 1")
        user_input()

Could someone edit this or explain to me how I can add another rule as well as the ValueError so that it only accepts numbers between 1 and 0?

Upvotes: 0

Views: 270

Answers (1)

Fredrik
Fredrik

Reputation: 1457

You can't check the value in the same line as you catch the exception. Try this:

def user_input():
    while True:
        initial_input = input("Please enter a number between 1 and 0")
        if initial_input.isnumeric() and (0.0 <= float(initial_input) <= 1.0):
            return float(initial_input)
        print("Please try again, it must be a number between 0 and 1")

EDIT Removed the try/except and used isnumeric()instead.

Upvotes: 5

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