validators.py

import re

def validate_email(email):
    pattern = r'[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}'
    if re.fullmatch(pattern, email):
        return True
    return False

def validate_phone(phone):
    pattern = r'^\+?[1-9]\d{1,14}$'
    return bool(re.fullmatch(pattern, phone))

def validate_url(url):
    pattern = r'^(https?://)?([\da-z.-]+)\.([a-z.]{2,6})([/\w .-]*)*/?$'
    return bool(re.fullmatch(pattern, url))

def validate_username(username):
    pattern = r'^[a-zA-Z0-9_]{5,15}$'
    return bool(re.fullmatch(pattern, username))

if __name__ == '__main__':
    emails = ['test@example.com', 'invalid-email', 'user@domain.org']
    results = {email: validate_email(email) for email in emails}
    print(results)  
    phones = ['+1234567890', '1234567']
    results = {phone: validate_phone(phone) for phone in phones}
    print(results)