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Introduction to Regular Expressions in Python

Master regular expressions in Python from the ground up! Build patterns to match, extract, validate, and transform text, then apply your skills to real-world data processing pipelines with confidence and precision.

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Verified skills you'll gain

INTERMEDIATE

Computer Science Fundamentals

INTERMEDIATE

Software Development Practices

Tools you'll use

Python

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Course 2

Extracting Data with Capture Groups in Python

4 lessons

15 practices

Go beyond simple matching and learn to pull specific data out of text. You'll use capture groups to parse structured information, find repeated patterns, and perform powerful text transformations. This course will equip you to clean, reformat, and extract valuable data from any string with precision.

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Course 3

Regex Validation, Flags, and Text Processing in Python

4 lessons

16 practices

Move into advanced regex techniques for robust data processing. You'll write patterns to validate user input, control matching with flags for readability and power, and use lookaheads for complex conditional logic. Finally, you'll learn to process large text files efficiently, a key skill for real-world data.

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Course 4

Real-World Regex in Python: Performance and Integration

4 lessons

15 practices

Put all your skills together to build production-ready regex. You'll learn to write fast, efficient patterns, handle international text, and create maintainable code. The course culminates in a capstone project where you build a complete data processing pipeline from scratch, just like a professional.

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11