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Regular expressions (regex or regexp) are a powerful tool for pattern matching and text manipulation in Python. They provide a concise and flexible way to search, match, and manipulate strings based on patterns. In this tutorial, we'll cover the basics of Python regex with code examples to help you understand and use this powerful feature.
Regex is a sequence of characters that forms a search pattern. It can be used for various purposes such as validating input, searching for specific patterns in text, and replacing text based on patterns.
Literal Characters: Match exact characters.
Character Classes: Define a set of characters to match.
Quantifiers: Specify the number of occurrences.
Wildcards: Match any character.
Python provides the re module for working with regular expressions. To use it, you need to import the module:
Let's go through some examples to illustrate the usage of regex in Python.
Regular expressions are a powerful tool in Python for pattern matching and text manipulation. By understanding the basics of regex and practicing with examples, you can enhance your string processing capabilities. Explore more complex patterns and use cases to become proficient in leveraging the full potential of regular expressions in Python.
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