CS50P Week 7 Notes - Mastering Regular Expressions (Regex) in Python (Free Download)

Master Python Regular Expressions with These Beginner-Friendly Notes! 🔍🐍

Want to search, extract, and manipulate text efficiently? These notes simplify pattern matching with regex, covering everything from basic syntax to real-world text processing tasks — key topics from Harvard’s CS50P.

💡 What You’ll Learn:

• ✅ Understand regex patterns to match specific text
• ✅ Use re.search(), re.match(), and re.findall() for string processing
• ✅ Validate emails, phone numbers, and user input
• ✅ Work with character sets, groups, and anchors
• ✅ Replace and split text with re.sub() and re.split()
• ✅ Avoid common regex pitfalls and optimize performance

🚀 Bonus:

• A handy checklist to track your progress
• Includes both PDF and Markdown formats!

💬 I’d love your feedback! Let me know what helped and what could be improved — your input helps me create better resources for learners like you.