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 Contributor

Search

/

Join
Sign‑In

Loading exercise...

Exercise: Remove Whitespace

Martin Breuss

Python Basics Exercises: Strings and String Methods Martin Breuss 08:00

Course Slides (.pdf) Sample Code (.zip) Ask a Question

Discussion

Become a Member to join the conversation.

Course Contents

Overview

28%

Review String Basics

Python Basics Exercises: Strings and String Methods (Overview) 02:47

What Is a String? (Exercise) 00:50

Exercise: What Is a String? 10:00

What Is a String? (Solution) 04:48

String Concatenation (Exercise) 00:25

Exercise: String Concatenation 08:00

String Concatenation (Solution) 02:04

String Slicing (Exercise) 00:22

Exercise: String Slicing 08:00

String Slicing (Solution) 03:01

Revisit String Methods

Change the Case (Exercise) 00:58

Exercise: Change the Case 11:30

Change the Case (Solution) 02:12

Remove Whitespace (Exercise) 01:01

Exercise: Remove Whitespace 08:00

Remove Whitespace (Solution) 02:34

Check the Beginning of a String (Exercise) 00:41

Exercise: Check the Beginning of a String 09:00

Check the Beginning of a String (Solution) 02:12

Apply String Methods (Exercise) 00:49

Exercise: Apply String Methods 11:00

Apply String Methods (Solution) 04:46

Work With User Input

Interact With User Input (Exercise) 00:38

Exercise: Interact With User Input 08:00

Interact With User Input (Solution) 04:48

Pick Apart Your User's Input (Exercise) 01:17

Exercise: Pick Apart Your User's Input 08:00

Pick Apart Your User's Input (Solution) 03:11

Work With Strings and Numbers (Exercise) 01:02

Exercise: Work With Strings and Numbers 08:00

Work With Strings and Numbers (Solution) 05:54

Keep Going With Strings

Streamline Your Prints (Exercise) 01:09

Exercise: Streamline Your Prints 08:30

Streamline Your Prints (Solution) 04:21

Prove That "a" Isn't in "AAA" (Exercise) 00:39

Exercise: Prove That "a" Isn't in "AAA" 08:00

Prove That "a" Isn't in "AAA" (Solution) 02:30

Replace a Character (Exercise) 00:26

Exercise: Replace a Character 08:00

Replace a Character (Solution) 01:21

Find a Letter in a String (Exercise) 00:40

Exercise: Find a Letter in a String 08:00

Find a Letter in a String (Solution) 03:10

Give Yourself a Challenge

Turn Your User Into a L33t H4ck3r (Exercise) 01:57

Exercise: Turn Your User Into a L33t H4ck3r 08:30

Turn Your User Into a L33t H4ck3r (Solution) 03:56

Refactor to Use Method Chaining 02:25

Python Basics Exercises: Strings and String Methods (Summary) 02:37

© 2012–2026 Real Python ⋅ Privacy Policy