Regular Expressions - search, findall, match & groups (Python Beginner Lesson #26)

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12:06
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Taught by Celeste AI - AI Coding Coach
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Description
Learn regular expressions in Python! 🔍 In this lesson, you will learn: ✅ The re module for pattern matching ✅ re.search() to find patterns anywhere in text ✅ re.match() to check the start of a string ✅ re.findall() to extract all matches ✅ Raw strings (r"...") to keep backslashes literal ✅ Metacharacters: \d, \w, \s, dot, caret, dollar ✅ Character classes [a-z] and negation [^0-9] ✅ Quantifiers: *, +, ?, {n}, {n,m} ✅ Capturing groups () and named groups ✅ re.sub() for substitution and re.compile() for reuse ✅ Mini Project: Text Processor (email validation, phone extraction, log parsing, text cleanup) 🕐 Timestamps: 0:00 - Introduction 0:22 - Regex Basics Explained 0:49 - Regex Basics Demo 3:32 - Patterns & Groups Explained 3:59 - Patterns & Groups Demo 6:59 - Text Processor Explained 7:26 - Text Processor Demo 10:35 - Recap 11:10 - End 💻 Source Code: https://github.com/GoCelesteAI/python_regular_expressions 🔗 Previous: Lesson 25 - Context Managers 🔗 Next: Lesson 27 - Virtual Environments #Python #PythonTutorial #LearnPython #Programming #RegularExpressions #Regex #PatternMatching #PythonBasics
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Duration

12:06

Published

February 10, 2026

Added to Codegiz

March 15, 2026

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