is_valid_email

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Filename: is_valid_email.py
# Author: Jeoi Reqi

"""
Valid Email Checker Script

This script prompts the user to enter an email address and checks whether
it is in a valid email format. It utilizes a function, valid_email, to
perform the email validation.

Requirements:
- Python 3

Usage:
1. Run the script.
2. Enter an email address when prompted.
3. The script will display whether the entered email address is valid or not.
"""

import re

def valid_email(email):
    """Check for a valid email address.

    Args:
        email (str): Email.

    Returns:
        bool: True if in valid email format, False otherwise.

    """
    return bool(re.match('^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$', email))

def main():
    # Get user input for email address
    user_email = input("Enter an email address: ")

    # Check if the email is valid
    if valid_email(user_email):
        print("The entered email address is Valid.")
    else:
        print("The entered email address is Not Valid.")

if __name__ == "__main__":
    main()