Contents

from string import ascii_lowercase
import sys

if sys.version_info[0] == 2:
    from string import maketrans
else:
    maketrans = str.maketrans


BLKSZ = 5
trtbl = maketrans(ascii_lowercase, ascii_lowercase[::-1])


def base_trans(text):
    return ''.join([c for c in text if c.isalnum()]).lower().translate(trtbl)


def encode(plain):
    cipher = base_trans(plain)
    return " ".join([cipher[i:i + BLKSZ]
                     for i in range(0, len(cipher), BLKSZ)])


def decode(ciphered):
    return base_trans(ciphered)

Version data entries

396 entries across 396 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.179	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.178	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.177	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.176	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.175	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.174	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.173	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.172	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.171	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.170	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.169	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.167	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.166	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.165	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.164	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.163	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.162	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.161	tracks/python/exercises/atbash-cipher/example.py
trackler-2.2.1.160	tracks/python/exercises/atbash-cipher/example.py