ubinascii – Binary/ASCII Conversions
This module implements conversions between binary data and various encodings of it in ASCII form (in both directions).
Functions
ubinascii.hexlify(data[, sep]) 
Convert binary data to hexadecimal representation. Returns bytes string.
Difference to CPython
If additional argument, sep is supplied, it is used as a separator between hexadecimal values.
ubinascii.unhexlify(data) 
Convert hexadecimal data to binary representation. Returns bytes string. (i.e. inverse of hexlify)
ubinascii.a2b_base64(data) 
Convert Base64-encoded data to binary representation. Returns bytes string.
ubinascii.b2a_base64(data) 
Encode binary data in Base64 format. Returns string.