bytes.fromhex() Method - Python Last Updated : 10 Mar, 2025 Comments Improve Suggest changes Like Article Like Report bytes.fromhex() method converts a hexadecimal string into a bytes object. Each pair of hex digits represents one byte making it useful for decoding hexadecimal-encoded data. For Example: Python hex_str = "48656c6c6f20576f726c64" # Hex representation of "Hello World" byte_data = bytes.fromhex(hex_str) print(byte_data) Outputb'Hello World' Syntax of bytes.fromhex()bytes.fromhex(string)Parameters: string: A hexadecimal string containing only valid hex characters (0-9, A-F).Return: Returns a bytes object containing the decoded binary data.Converting Hexadecimal Strings to BytesWhen working with hexadecimal-encoded data, bytes.fromhex() helps in decoding it back into a bytes object. Python hex_code = "4e6574776f726b" res = bytes.fromhex(hex_code) print(res) Outputb'Network' Explanation:hexadecimal string "4e6574776f726b" corresponds to the word "Network".bytes.fromhex(hex_code) decodes the hex string into the bytes object: b'Network'.Processing Encrypted DataThis method is often used in cryptography or network communication when dealing with encoded binary data. Python # cipher_text s = "5365637265744b6579" # decoded_cipher o = bytes.fromhex(s) print(o) Outputb'SecretKey' Explanation:hexadecimal string "5365637265744b6579" represents the ASCII encoding of "SecretKey".bytes.fromhex(s) converts this hex string into the bytes object: b'SecretKey'.output of print(o) is b'SecretKey', showing the decoded string as bytes. Comment More infoAdvertise with us Next Article bytes.fromhex() Method - Python A aryantcutw Follow Improve Article Tags : Python Practice Tags : python Similar Reads Python bytes() method bytes() method in Python is used to create a sequence of bytes. In this article, we will check How bytes() methods works in Python. Pythona = "geeks" # UTF-8 encoding is used b = bytes(a, 'utf-8') print(b)Outputb'geeks' Table of Contentbytes() Method SyntaxUsing Custom EncodingConvert String to Byte 3 min read Python PIL | Image.frombytes() Method PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities. The Image module provides a class with the same name which is used to represent a PIL image. The module also provides a number of factory functions, including functions to load images from files, 2 min read Python | os.fsdecode() method OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality. os.fsdecode() method in Python is used to decode the specified filename from the 1 min read Python | os.fsencode() method OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality. os.fsencode() method in Python is used to encode the specified filename to the fi 1 min read Python | os.ftruncate() method OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality. os.ftruncate() method in Python is used to truncate the file corresponding to the 4 min read Python | os.makedev() method OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality. os.makedev() method in Python is used to compose a raw device number from the giv 3 min read expandtabs() method in Python expandtabs() method in Python is used to replace all tab characters (\t) in a string with spaces. This method allows for customizable spacing, as we can specify the number of spaces for each tab. It is especially useful when formatting text for better readability or alignment. Let's understand with 3 min read Python Strings decode() method The decode() method in Python is used to convert encoded text back into its original string format. It works as the opposite of encode() method, which converts a string into a specific encoding format. For example, let's try to encode and decode a simple text message:Pythons = "Geeks for Geeks" e = 4 min read Python - Strings encode() method String encode() method in Python is used to convert a string into bytes using a specified encoding format. This method is beneficial when working with data that needs to be stored or transmitted in a specific encoding format, such as UTF-8, ASCII, or others.Let's start with a simple example to under 3 min read Python PIL | Image.frombuffer() method PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities. The Image module provides a class with the same name which is used to represent a PIL image. The module also provides a number of factory functions, including functions to load images from files, 2 min read Like