This Python script demonstrates basic user input validation for usernames and email addresses. It uses regular expressions to check for valid formats and prevent common unsafe characters, illustrating the concept of building a secure input gate.
python
Save the code as validate_input.py and run it from your terminal using: python validate_input.py
This example accompanies the Turkish article: Python'da Kullanıcı Girişi Doğrulama: Güvenli Bir Kapı İnşa Etmek.
MIT — see LICENSE.