Скачать или смотреть Understanding Why Hexadecimal Bytes Data b'\x35' is Interpreted as b'5' in Python

Discover the reasons behind byte representations in Python, specifically how hexadecimal notation translates to ASCII characters in bytes. Learn how to effectively handle hexadecimal data with clear examples and explanations.
---
This video is based on the question https://stackoverflow.com/q/62713139/ asked by the user 'TECHKEY' ( https://stackoverflow.com/u/11224290/ ) and on the answer https://stackoverflow.com/a/62713313/ provided by the user 'sciencepiofficial' ( https://stackoverflow.com/u/13741055/ ) 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: Why is hexadecimal bytes data b'\x35' being interpreted as b'5' in Python?

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.
---
Understanding Why Hexadecimal Bytes Data b'\x35' is Interpreted as b'5' in Python

When working with data in Python, especially in different formats like hexadecimal bytes, you may encounter some unexpected behaviors. One common issue is the interpretation of hexadecimal bytes, such as b'\x35', which is seen as b'5' when printed. In this guide, we’ll explore this phenomenon and clarify why it happens along with how you can manage this byte representation effectively.

The Problem: Confusing Outputs

Let’s break down the initial concern:

You are working with hexadecimal bytes data, for instance, b'\x35', b'\xA6', b'\x12', and b'\x26'.

When printed, the output often appears different from what you expect. Specifically, b'\x35' displays as b'5' while b'\xA6', b'\x12', and b'\x26' show differently.

The question is: Why does Python interpret b'\x35' as b'5'?

Understanding Hexadecimal and ASCII

To understand the behavior, we need to dive into a few concepts: hexadecimal representation and ASCII encoding.

Hexadecimal Representation

Hexadecimal is a base-16 number system using the digits 0-9 and letters A-F.

Each hex digit represents four binary digits (bits). For example, 0x35 in hexadecimal is equivalent to the decimal number 53, as follows:

3 * 16^1 + 5 * 16^0 = 48 + 5 = 53

ASCII Encoding

The American Standard Code for Information Interchange (ASCII) is a character encoding standard that uses numerical values to represent characters.

Each printable ASCII character corresponds to a specific byte value. For example:

0x35 corresponds to the character '5'

0x61 corresponds to the character 'a'

The Relationship Between Hexadecimal and Bytes

When you create byte sequences such as b'\x35', Python converts that hexadecimal notation to the corresponding ASCII character which, in this case, is the decimal number 53 or character '5'. Hence, when printed, it displays as b'5'.

Clarifying the Output

When you run the print command:

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

You receive b'5' because:

Python interprets 0x35 as the ASCII for the character '5'.

This is true for any valid ASCII character represented in hexadecimal.

Example

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

Conclusion: No Change is Needed

Key Takeaways

The conversion from b'\x35' to b'5' is not an error but an expected outcome based on ASCII encoding.

You don’t need to change anything; using b'5' instead of b'\x35' will behave the same way in your Python programs. Just make sure you understand how Python interprets hexadecimal bytes.

If you're processing byte data, this understanding will help you manage the representation without expecting different outputs than what Python is accurately delivering.

Hope this clears up your confusion regarding hexadecimal bytes and ASCII representation! Happy coding!