1️⃣20.1 Persistence2️⃣20.2 Text Files3️⃣20.3 Text Practice4️⃣20.4 Shelve5️⃣20.5 Shelve Practice6️⃣20.6 JSON❓Ch. 20 QuizPrevious ChapterCh. 19 Exception Handling⚖️Copyright © 2021 Code 4 Tomorrow. All rights reserved. The code in this course is licensed under the MIT License. If you would like to use content from any of our courses, you must obtain our explicit written permission and provide credit. Please contact firstname.lastname@example.org for inquiries.