Validation Rule - User input cannot be left blank - Python

Question

I'm currently working on a program that has a validation rule for a name, which doesn't allow any punctuation to be entered. The input is stored in a variable, name, and then stored in a file later on. I have already got the punctuation sorted out. However, when I went back to test my program, I realised that if I left the field blank, the program would accept my input. Here is that part of my code:

n = True
while n == True:
    name = input("\nPlease enter your name:\n")
    invalidName = re.search("[^A-Za-z]+",name)

    if invalidName:
        print("No special characters will be accepted.")
    else:
        print("Accepted.")
        name = name.lower()
        name = name.title()
        n = False

I would greatly appreciate it if someone came up with something to make it so that the user input must have something entered for the program to accept it.

Why not just check the length of the string? Or, probably more simply, `not name` — sco1, Apr 08 '16 at 13:31
Wow, I didn't think of that. But, how would I do that? :) EDIT: Never mind, I've found another fix. Thanks, though :P — Jamil, Apr 08 '16 at 13:32

Gábor Erdős · Answer 1 · 2016-04-08T13:34:04.810

1

Use:

elif not name:
    print("You must type something in!")

after the if statement

edited Apr 08 '16 at 13:34

answered Apr 08 '16 at 13:31

Gábor Erdős

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You, sir, are amazing! Thanks so much :D – Jamil Apr 08 '16 at 13:32
Glad i could help! :) – Gábor Erdős Apr 08 '16 at 13:33

Validation Rule - User input cannot be left blank - Python

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