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Serializing Python Objects with Pickle and Shelve

Object serialization and persistence can be incredibly useful if you need to share data between multiple applications or save data for use later. Python provides utilities for serializing and deserializing Python objects to and from bytes, to make it possible to pass Python data structures between Python applications or to read/write to a file without needing to convert to an intermediate data format like JSON. In this hands-on lab, you'll utilize these features in the standard library to create a simple flashcard command line application. By the time you've finished this lab, you should have a good understanding of how to use the `pickle` and/or `shelve` modules from the Python standard library.

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Path Info

Clock icon Intermediate
Clock icon 1h 0m
Clock icon Mar 26, 2021

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Table of Contents

  1. Challenge

    Create a FlashCard Class with a Front and a Back

    The FlashCard class needs to hold onto some string information. This class is a data class.

  2. Challenge

    Implement new, delete, and list CLI Subcommands

    The new_flashcard, delete_flashcard, and list_flashcards functions all need to be implemented so that they can read and write from a local file that persists the flashcard information.

  3. Challenge

    Implement the practice Command

    When practicing, you want to be able to specify the number of questions.

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What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.

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