Скачать или смотреть Converting the output of pickle.dumps() into a string and back

Learn how to effectively convert the output of `pickle.dumps()` into a string using base64 encoding, and then back to bytes for processing in Python.
---
This video is based on the question https://stackoverflow.com/q/74593860/ asked by the user 'WinFan3672' ( https://stackoverflow.com/u/18300745/ ) and on the answer https://stackoverflow.com/a/74593926/ provided by the user 'snakecharmerb' ( https://stackoverflow.com/u/5320906/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Converting the output of pickle.dumps() into a string and back?

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Converting the Output of pickle.dumps() into a String and Back: A Simple Guide

In the world of Python programming, dealing with object serialization is a common task—especially when you are persisting your data structures or sending them over a network. One popular module for this is pickle, which allows you to serialize and deserialize Python objects. However, a challenge often arises when you need to convert the output of pickle.dumps() to a string and then revert it back to a byte stream. If you've encountered this dilemma, you're not alone! Let's explore how to tackle this problem step by step.

Understanding the Problem

When you serialize an object using pickle.dumps(), Python returns a byte stream. This byte stream can contain non-textual data, making it unsuitable for some text-based environments. Your goal is to:

Convert the byte output from pickle.dumps() into a string (a process known as "stringifying").

Convert that string back into a byte stream so that it can be processed using pickle.loads().

If you've already attempted to use UTF-8 encoding for this, only to run into issues, fear not. There is a better approach!

The Solution: Using Base64 Encoding

The easiest and most effective way to convert binary data to a string is to use Base64 encoding. Base64 is specifically designed for encoding binary data in a textual format, making it perfect for your use case.

Step-by-Step Guide

Here's a detailed breakdown of how to convert the output of pickle.dumps() into a Base64 encoded string and back to bytes:

1. Serialize Your Object

First, let's take a look at an example of how you might serialize a Python object with pickling:

[[See Video to Reveal this Text or Code Snippet]]

2. Convert to a Base64 Encoded String

Once you have the byte stream, you can now convert it to a Base64 encoded string:

[[See Video to Reveal this Text or Code Snippet]]

3. Convert Back to Byte Stream

When you're ready to convert the Base64 string back to a byte stream, follow these steps:

[[See Video to Reveal this Text or Code Snippet]]

Alternative: Directly Saving to a Binary File

If your end goal is to simply store your pickle data to a file, you can bypass string conversion altogether by saving directly in binary mode:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Using pickle is a powerful way to manage Python object serialization. However, when you need to convert your pickled output to a string, Base64 encoding is your friend. It can simplify the task of handling binary data in text-based contexts. And if you're focusing solely on storing serialized data, remember that writing directly to a binary file is the simplest solution.

With this guide, you should now feel comfortable with converting the output of pickle.dumps() into a string and back. Happy coding!