Translate binary to ASCII, use bit offset 0 through 7 and print all permutations

bin-to-ascii.py

#!/usr/bin/env python3

import sys


f = sys.stdout
# f = open('code.txt', 'wt', encoding='utf-8')


def print_bits(bits):
    # store as bytes first
    b = b''
    for i in range(0, len(bits), 8):
        byte = bits[i:i+8]
        b += bytes([int(byte, 2)])
    # decode to string one or several at a time
    s = ''
    while b:
        for i in range(1,5):
            try:
                s += b[:i].decode()
                b = b[i:]
                break
            except:
                pass
        else:
            s += '?'
            b = b[1:]
    print(s, file=f, flush=True)


bits = ""
while True:
    b = input("bit (0/1, empty to quit): ")
    bb = ''
    for c in b:
        if c not in ("0", "1"):
            continue
        bb += c

    bits += bb

    print(bits)
    for i in range(8):
        print(i, end=' ', file=f)
        print_bits(bits[i:])