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467 challenges 330 easy 120 medium 17 hard

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Strings & Text easy

Repeat each character n times

Given a string s and an integer n, return a new string where each character of s is repeated n times consecutively.

strings join comprehension

Strings & Text easy

Validate time format

Check whether a given string is a valid 24-hour time in HH:MM format.

strings validation time

Strings & Text easy

Parse Log Line

Write a function that parses a log line and returns a dictionary with timestamp, level, and message.

string-parsing split strip

Showing 3 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.