04-20: Quiz Game (JSON-backed)

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Loads 12 multiple-choice Python questions from a JSON file. Supports full quiz, category quiz, 5-question quick quiz, timed mode, and persistent high scores (also in JSON). Each question shows an explanation after answering.

Topics covered: json.load() / json.dump() · random.shuffle() / random.sample() · time.time() · pathlib.Path · dicts · list filtering · functions

Difficulty: ⭐⭐ Intermediate

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How to Run

python main.py

questions.json and high_scores.json are created automatically.

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Sample Question

  Question 3/12 — Python Basics
  Which of these creates an empty list?

    A. list = {}
    B. list = ()
    C. list = []
    D. list = <>

  Your answer (A/B/C/D): C
  ✅ Correct!
  💡 Square brackets [] create a list. {} is a dict/set, () is a tuple.

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Key Concepts Practised

Concept	Where used
json.load() / json.dump()	Load questions and save scores
random.shuffle(questions)	Random question order each game
random.sample(qs, 5)	Quick quiz selection
time.time()	Per-question timer
High score logic	update_high_score() — only saves if better