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Regular expressions (regex) are a powerful tool for pattern matching in strings. In Python, the re module provides support for working with regular expressions. One interesting aspect of regex in Python is the ability to use variables to make patterns more dynamic. In this tutorial, we will explore how to use variables in regular expressions with Python.
The re module in Python provides support for regular expressions. It includes functions like search(), match(), findall(), and more to work with regex patterns.
Before diving into using variables, let's quickly review some basic regex patterns:
To use variables in regular expressions, we can create dynamic patterns by concatenating strings or using f-strings (formatted string literals). This allows us to build regex patterns based on variables' values.