Real Python
  • Start Here
  • Learn Python
    Python Tutorials →
    In-depth articles and video courses     Learning Paths →
    Guided study plans for accelerated learning     Quizzes & Exercises →
    Check your learning progress     Browse Topics →
    Focus on a specific area or skill level     Community Chat →
    Learn with other Pythonistas     Office Hours →
    Live Q&A calls with Python experts     Podcast →
    Hear what’s new in the world of Python     Books →
    Round out your knowledge and learn offline     Reference →
    Concise definitions for common Python terms     Code Mentor →Beta
    Personalized code assistance & learning tools     Unlock All Content →
  • More
    Learner Stories Python Newsletter Python Job Board Meet the Team Become a Tutorial Writer Become a Video Instructor
  • Search
/
  • Join
  • Sign‑In

— FREE Email Series —

🐍 Python Tricks 💌

Python Tricks Dictionary Merge

🔒 No spam. Unsubscribe any time.

Browse Topics Guided Learning Paths
Basics Intermediate Advanced
ai algorithms api best-practices career community databases data-science data-structures data-viz devops django docker editors flask front-end gamedev gui machine-learning news numpy projects python stdlib testing tools web-dev web-scraping

Table of Contents

  • Regexes in Python and Their Uses
    • A (Very Brief) History of Regular Expressions
    • The re Module
    • How to Import re.search()
    • First Pattern-Matching Example
    • Python Regex Metacharacters
  • Metacharacters Supported by the re Module
    • Metacharacters That Match a Single Character
    • Escaping Metacharacters
    • Anchors
    • Quantifiers
    • Grouping Constructs and Backreferences
    • Lookahead and Lookbehind Assertions
    • Miscellaneous Metacharacters
  • Modified Regular Expression Matching With Flags
    • Supported Regular Expression Flags
    • Combining <flags> Arguments in a Function Call
    • Setting and Clearing Flags Within a Regular Expression
  • Conclusion

Recommended Course