Python .b2a_hex()

The .b2a_hex() function converts binary data into a bytes object containing a string of ASCII characters representing the data in Base16 (hexadecimal) format.

Syntax

binascii.b2a_hex(data[, sep[, bytes_per_sep=1]])

Parameters:

• data: The binary data to convert. Must be a bytes or bytearray object.
• sep (optional): A single-byte separator inserted between pairs of hex digits in the output.
• bytes_per_sep (optional, default = 1): Determines how many bytes are grouped together before inserting the separator. Ignored if sep is not provided.

Return value:

Returns a bytes object containing the hexadecimal (Base16) ASCII representation of the input binary data.

Example: Basic Hexadecimal Conversion

In this example, the binary string "hello" is converted to its Base16 ASCII representation:

import binascii

# Create binary data to encode
binary_data = b"hello"

# Encode the binary data to Base16 ASCII format
encoded_data = binascii.b2a_hex(binary_data)

print(encoded_data)

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This produces the following output:

b'68656c6c6f'

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Note: Each byte of the input is converted to its two-character hexadecimal representation.

Codebyte Example

In this example, the binary string "Codecademy" is converted to hexadecimal using .b2a_hex() to demonstrate encoding in a small, real-life scenario:

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