README.md

Module 067: Regular Expressions

• Phase: 7. Modules, Stdlib & Testing
• Duration: 2.5 hours

Learning Objectives

• Build and use regular expressions with the re module
• Search, match, find all, split, and substitute text
• Use metacharacters, character classes, and quantifiers
• Work with raw strings and compiled patterns
• Extract groups and named captures

Topics Covered

• re.search(), re.match(), re.findall(), re.finditer()
• re.sub(), re.split()
• Metacharacters: . ^ $ * + ? {} [] \\ | ()
• Character classes: \d, \w, \s, \D, \W, \S
• Raw strings (r"...") to avoid escape issues
• re.compile() for performance
• Groups () and named groups (?P<name>...)

Prerequisites

Module 066: The Python Standard Library Tour

Next Module

Module 068: Working with Dates and Times