Python Regex Masterclass: Custom & Pre-Defined Character Classes (Beginner to Advanced)
Автор: Mr.Anonymous Coder
Загружено: 2025-11-07
Просмотров: 41
Python Regex Masterclass: Custom & Pre-Defined Character Classes (Beginner to Advanced) #python #coding #programming
Welcome to the definitive guide on Character Classes in Python Regular Expressions (Regex)! 🔎 This video is essential for anyone who needs to find, validate, or manipulate text data efficiently using Python's re module.
Character classes allow you to match a single character from a specified set, dramatically simplifying your search patterns.
What You Will Master:
Programmer-Defined (Custom) Character Classes:
1. Using square brackets ([]) to define your own set of acceptable characters.
2. Defining ranges (e.g., [0-9], [a-zA-Z]).
3. Understanding and using negation ([^...]) to match characters not in the set.
Pre-Defined Character Classes:
1. Digits: \d (equivalent to [0-9]) and \D (non-digits).
2. Word Characters: \w (letters, numbers, underscore) and \W (non-word).
3. Whitespace: \s (space, tab, newline) and \S (non-whitespace).
Real-World Application: See how to use these classes for validating usernames, parsing phone numbers, and cleaning text datasets.
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#python #regex #regularexpressions #pythonprogramming #coding #programmingtutorial #pythonregex #datascience
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