ubinascii - Binary/ASCII Conversions

2025-08-23 
This article introduces the use of QuecPython's ubinascii module and describes features of the latest version of the ubinascii module.

The module realizes the conversion between binary data and various ASCII encoding (bidirectional), and subsets of the corresponding CPython module. See CPython file binascii for more detailed information.

Constructor #

ubinascii.a2b_base64 #

ubinascii.a2b_base64(data)

This function decodes the data encoded by base64. When decoding, invalid characters inputed by base64 will be ignored, and the bytes object will be returned.

ubinascii.b2a_base64 #

ubinascii.b2a_base64(data)

Encodes binary data in base64 format and returns encoded data. The encoded data followed by a line break is represented as the bytes object.

ubinascii.hexlify #

ubinascii.hexlify(data, [sep])

Converts the binary data to the hexadecimal character string.

Example 

>>> import ubinascii
# No sep parameter
>>> ubinascii.hexlify('\x11\x22123')
b'1122313233'
>>> ubinascii.hexlify('abcdfg')
b'616263646667'
# The second parameter sep is specified, which will be used to separate two hexadecimal numbers
>>> ubinascii.hexlify('\x11\x22123', ' ')
b'11 22 31 32 33'
>>> ubinascii.hexlify('\x11\x22123', ',')
b'11,22,31,32,33'

ubinascii.unhexlify #

ubinascii.unhexlify(data)

Converts the hexadecimal character string to the binary character string.

Example 

>>> import ubinascii
>>> ubinascii.unhexlify('313222')
b'12"'