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467 challenges 330 easy 120 medium 17 hard

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Strings & Text easy

Remove Consecutive Duplicate Letters

Implement a function that removes consecutive duplicate letters from a string, keeping only one occurrence of each run.

strings loops manipulation

Strings & Text easy

Sort characters alphabetically

Sort all characters in a string alphabetically and return the sorted string.

sorting string manipulation

Strings & Text easy

Replace Spaces with Dashes

Write a function that replaces every space in a string with a dash.

strings replace manipulation

Strings & Text easy

Camel Case Converter

Write a function that converts a space-separated phrase into lower camelCase.

strings casing manipulation

Strings & Text easy

Replace template variables

Implement a function that replaces {{variable}} placeholders in a string using a dictionary, leaving unknown placeholders intact.

string-manipulation parsing template

Showing 5 challenges · easy · Strings & Text

Strings & Text — Python coding challenges

What you will find here

This page lists strings & text challenges — real Python problems you solve in the browser IDE with instant test feedback. Each challenge includes a clear brief, starter code, and automated checks.

Challenges vs tutorials and quizzes

Challenges test what you can build under constraints. For guided teaching, use our Python tutorials. For quick checks, try quizzes or copy snippets from code samples.