Parse Log Line
Write a function that parses a log line and returns a dictionary with timestamp, level, and message.
Split on camelCase
Given a camelCase string, split it into words at uppercase letters and return them as lowercase words.
Validate username format
Implement a function that validates a username according to length, allowed characters, and no consecutive underscores.
Change directory manager
Implement a function that processes `cd` commands and returns the resulting absolute path.
Parse markdown headers
Write a function that parses markdown headers and returns their levels and texts.
Parse bullet list
Parse a markdown-style bullet list and return the list of item texts, stripping bullet markers and trimming surrounding whitespace.
Parse numbered list
Take a string containing a numbered list and return a clean list of the item texts.
Find repeated words
Return a lowercase list of unique words that appear more than once across a given text, ignoring case.
Crawler Log Folder
Given a list of folder navigation operations, compute the minimum steps required to return to the main folder.
Showing 25–33 of 33 challenges · 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.
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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.