Python Email Validation using Regex

This Python script demonstrates how to validate email addresses using regular expressions (regex). It imports the re module, defines a list of sample email addresses, and loops through each one to check its validity.

The regex pattern used is:

^[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:[a-zA-Z0-9-]+\.[a-zA-Z0-9]+)+$

This pattern checks for a valid local part, an @ symbol, and a domain part with at least one dot. If a match is found, the email is considered valid and printed in green; otherwise, it is invalid and printed in red using ANSI color codes.

How to use:

• Copy the code into a Python file.
• Run it with Python 3.
• The output will clearly show which emails are valid and which are not.

Note: This is a basic validation script. For production use, consider more comprehensive validation techniques.