Regular Expressions and Building Regexes in Python

Christopher Trudeau

Christopher Trudeau 14 Lessons 1h 53m
basics python

In this course, you’ll explore regular expressions, also known as regexes, in Python. A regex is a special sequence of characters that defines a pattern for complex string-matching functionality.

String matching like this is a common task in programming, and you can get a lot done with string operators and built-in methods. At times, though, you may need more sophisticated pattern-matching capabilities.

In this course, you’ll learn:

  • How to access the re module, which implements regex matching in Python
  • How to use re.search() to match a pattern against a string
  • How to create complex matching pattern with regex metacharacters
  • Explore more functions, beyond re.search(), that the re module provides
  • Learn when and how to precompile a regex in Python into a regular expression object
  • Discover useful things that you can do with the match object returned by the functions in the re module

About Christopher Trudeau

Christopher Trudeau Christopher Trudeau

Christopher has a passion for the Python language and writes for Real Python. He is a consultant who helps advise organizations on how to improve their technical teams.

» More about Christopher

Each tutorial at Real Python is created by a team of developers so that it meets our high quality standards. The team members who worked on this tutorial are:

Participant Comments

Ghani on Nov. 22, 2020

Excellent course! I like very much the review at the start of each new lesson. Well-done and thanks.

« Browse All Courses