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Strings & Text easy

Snake case to camel case

Implement a function that converts snake_case strings to camelCase.

strings case-conversion text-processing

Strings & Text easy

Error message formatter

Write a function that constructs a formatted error message from a code, an optional context, and a fallback message.

formatting strings function

Strings & Text easy

Extract Hashtags

Extract unique hashtags from a given text string in the order they appear.

strings parsing hashtags

Strings & Text easy

Remove HTML tags

Remove all HTML tags from a string to extract clean text.

html string parsing

Strings & Text easy

Extract Quoted Strings

Write a function that extracts the text inside every double-quoted substring from a given string.

strings parsing quotes

Strings & Text easy

Find all numbers in text

Write a function that extracts all standalone integers from a text string using regular expressions.

regex parsing numbers

Strings & Text easy

Parse markdown headers

Write a function that parses markdown headers and returns their levels and texts.

markdown parsing strings

Strings & Text easy

Parse bullet list

Parse a markdown-style bullet list and return the list of item texts, stripping bullet markers and trimming surrounding whitespace.

parsing strings markdown

Strings & Text easy

Parse numbered list

Take a string containing a numbered list and return a clean list of the item texts.

string parsing strip split

Strings & Text easy

Decode base64 string

Write a function that decodes a base64 string to its original UTF-8 text without using the base64 module.

base64 decode strings

Strings & Text easy

Find repeated words

Return a lowercase list of unique words that appear more than once across a given text, ignoring case.

string parsing word-count

Showing 1–11 of 11 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.