Master PyQuiz — Data Structures

Expand PyQuiz with a category filter, per-round stats, and file I/O — so your question bank and history persist across sessions.

Beginner

4 hours

4 lessons

Course Content

18 chapters across 4 lessons

Lists

Expand the question bank to ten questions and add a configurable quiz length

4 chapters

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Configurable Rounds

Continue

Understand slicing and how it lets players choose a shorter round from the bank

Configurable Length

Add a num parameter to run_quiz so players can choose how many questions to answer

Choose How Many

Ask the player how many questions to answer before each round

Lesson Complete

You finished Lists — recap what you built and what comes next

Dictionaries

Refactor the quiz to use question dictionaries and add category filtering

5 chapters

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Why Dictionaries?

Understand why dictionaries are better than tuples for structured question data

Refactor ask_question

Update ask_question to accept a question dict instead of six separate arguments

Derive and Display Categories

Build the category list from your data using set, sorted, and join

Filter by Category

Let players choose a topic before each round using a list comprehension

Lesson Complete

You finished Dictionaries — recap what you built and what comes next

Stats Tracking

Add a STATS dictionary to track performance across every round

5 chapters

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Why Track Stats?

Understand what the STATS dictionary will store and why it matters

Add the Stats Dictionary

Create the STATS dictionary and make run_quiz return score and total

Update Stats After Each Round

Unpack run_quiz's return value and update the STATS dictionary

Show Stats

Add a show_stats function and display it at the start of each round

Lesson Complete

You finished Stats Tracking — recap what you built and what comes next

File I/O

Load the question bank from disk and save your stats so they persist across sessions

4 chapters

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Load Questions from Disk

Replace the hardcoded question list with one loaded from a JSON file

Save Stats on Exit

Define save_stats and call it when the player quits so stats survive the session

Load Stats at Startup

Define load_stats to read the saved stats file and restore the player's history

Lesson Complete

You finished File I/O — recap what you built and what comes next