In Python queries whether an input is an int or a str

Question

from colorama import init, Fore, Style
import os

if Name == "Germany" or Name == "Italy" or Name == "Poland": 
        Height = int(input("How high should the image be? Maximum is 4608 pixels."))
        if Height < 1:
            print(Fore.RED + "This is not a valid height!")
            exit()
        elif height > 0:
            Width = int(Height * (16 / 9))

The following problem:

So far the program can already determine if the input is below 1, which would be an invalid height for an image. But how do I do that if I want to prevent that when a letter or something else is entered that such an ugly error message appears and the program instead

print(Fore.RED + "This is not a valid height!")
exit()

executes

If some more code is needed to understand the context, please let me know

I’m voting to close this question because the question is not in English. — Thomas Sablik, Dec 27 '20 at 14:52
https://stackoverflow.com/questions/8075877/converting-string-to-int-using-try-except-in-python — Thomas Sablik, Dec 27 '20 at 14:55
Does this answer your question? [Asking the user for input until they give a valid response](https://stackoverflow.com/questions/23294658/asking-the-user-for-input-until-they-give-a-valid-response) — Tomerikoo, Dec 29 '20 at 07:50

score 0 · Answer 1 · answered Dec 29 '20 at 08:25

You can easily use Exception, except ValueError and TypeError

Code Syntax

try:
    Height = int(input("How high should the image be? Maximum is 4608 pixels."))
        if Height < 1:
            print(Fore.RED + "This is not a valid height!")
            exit()
        elif height > 0:
            Width = int(Height * (16 / 9))
except (TypeError, ValueError):
    print(Fore.RED + "This is not a valid height!")
    exit()

In Python queries whether an input is an int or a str

1 Answers1