base64encode_v1_02.py

import math # required
import secrets ## optional for future use
import string # required
import binascii # required

#Author: Steven Hatzakis @2018, Licensed under Apache 2.0
# Version 1.02

#test binary data string: 0b010010010111011111001110010111011101001110001101001011100010011100011101001110011111001110010111010001001010011101100011001010010100010010011100111001000010000000000001001000

#test string as hex: '0x125df39774e34b89c74e7ce5d129d8ca512739080048'

#test string result :'INVENTEDBYSTEVENHATZAKIS@2018'

## legacy notes: #FIX: LEADING ZEROS LOST (i.e.w/ test string 0x064ce8c835f4d374e04e33244beccad0)
#also, even when no leading zero in string, the leading zeroes of the actual base64 character are discarded,
#as the encoding appears to happen from right to left, see this test string where leading zeroes of
# first char 2 are discarded, and last char is N  0xb13ae7e331ce9dfa59799e95ee8dc117

def base64en(address_hex):   # important never to rename base64en to "base64" which can corrupt the Python installation.
    # (renamed alphabet to base64library below) alphabet = string.digits+string.ascii_uppercase+string.punctuation
    base64library=["0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z",
"!",
'"',
"#",
"$",
"%",
"&",
"'",
"(",
")",
"*",
'+',
",",
"-",
".",
"{",
":",
";",
"<",
"=",
">",
"?",
"@",
"[",
"}",
"]",
"^",
"_",
"`"]
    b64_string = ''
    # Get the number of leading zeros and convert hex to decimal
    leading_zeros = len(str(address_hex))-2 #len(str(address_hex)) - len(str(address_hex.lstrip('0')))
    # Convert hex to decimal
    address_int = int(address_hex)
    # Append digits to the start of string
    while address_int > 0:
        digit = address_int % 64
        digit_char = base64library[digit]
        b64_string = digit_char + b64_string
        address_int //= 64
    # Add '1' for each 2 leading zeros
    #ones = leading_zeros // 8
    #for one in range(ones):
     #   b64_string = '1' + b64_string
    return b64_string
hexer=int(input('enter binary string with '0b' pad'),2)
print(base64en(hexer))
print("The above is this many char's long: ",len(str((base64en(hexer)))))