Python - Regular Expressions

Regular expressions (regex) are a powerful tool for handling strings. They provide a concise and flexible means to "match" (search, manipulate, and edit) strings based on very specific and complex patterns.

Why Use Regular Expressions?

Before learning regular expressions, let's understand why they are necessary with a simple example.

Example: Searching in a String Using a Loop

Imagine you want to check if a string contains any digit. One way to do this without regular expressions is using a loop.