encode number as string

encode_it.py

import base64

def encode(number):
    out = ""
    while number > 0:
        first_byte = number & 0b11111111
        out = chr(first_byte) + out
        number = number >> 8
    return out

def decode(string_number):
    n = 0
    l = len(string_number)
    for i, c in enumerate(string_number, 1):
        n = n | ord(c)
        if l > i:
          n = n << 8

    return n

encoded_number = base64.encodestring(encode(0xfacd1000))
print(encoded_number)
decoded_number = decode(base64.decodestring(encoded_number))
assert decoded_number == 0xfacd1000