python 3 regex tutorial

Regular expressions, commonly known as regex or regexp, provide a powerful and flexible way to search, match, and manipulate strings in Python. In this tutorial, we'll explore the basics of using regex in Python 3, along with practical examples to help you grasp the concepts.
Regex is a sequence of characters that defines a search pattern. It consists of special characters and literals that, when combined, create a pattern that can be matched against strings.
In Python, the re module provides support for regular expressions. Before using regex, you need to import this module.
The simplest pattern is a literal string. To find an exact match:
Character classes allow you to match any one of a set of characters. For example:
Quantifiers specify the number of occurrences of a character or group. Some common quantifiers are:
Groups allow you to capture parts of a match.
The re module supports flags that modify the behavior of regex patterns. Common flags include re.IGNORECASE and re.MULTILINE.
Regular expressions in Python provide a powerful tool for string manipulation and searching. This tutorial covers the basics, but there's much more to explore. As you work with regex, refer to the official documentation for additional details and advanced features.
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