Introduction to Regex

# Introduction to Regex Regular expressions (regex) are a way to match patterns in text data. They are widely used in many areas such as data cleaning, data processing, and data analysis. Python's built-in `re` module provides support for regular expressions. In this article, you will learn the basics of regex and how to use it in Python. **Basic Concepts** Regex patterns are made up of atoms, which are the basic building blocks of regex patterns. The most common atoms are: 1. **Literal ch