python encryption with a cipher

Question

I need to encrypt a string in python according to a cipher.

character_set = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 "
secret_key    = "Dd18Abz2EqNPW hYTOjBvtVlpXaH6msFUICg4o0KZwJeryQx3f9kSinRu5L7cGM"

any ideas? my function always returns a long list like:

code:

import string

def my_encryption(s):        
    s.translate(str.maketrans(character_set, secret_key))

Possible duplicate of How would I make a simple encryption/decryption program? — Artjom B.
– Artjom B., Commented Feb 28, 2016 at 16:50
in python 3 see docs.python.org/3/library/stdtypes.html#str.maketrans and docs.python.org/3/library/stdtypes.html#str.translate — Paweł Kordowski
– Paweł Kordowski, Commented Feb 28, 2016 at 16:59

Paweł Kordowski · Accepted Answer · 2016-02-28 17:19:39Z

0

in python 2

>>> import string
>>> translate_table = string.maketrans(character_set, secret_key)
>>> string.translate("test", translate_table)
'BAjB'

in python 3:

>>> "test".translate(str.maketrans(character_set, secret_key))
'BAjB'

or manually in python 3:

>>> D = dict(zip(character_set, secret_key))
>>> ''.join(map(D.get, "test"))
'BAjB'

edited Feb 28, 2016 at 17:19

answered Feb 28, 2016 at 16:54

Paweł Kordowski

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7 Comments

Crashberry py Over a year ago

type str has no attr maketrans

Paweł Kordowski Over a year ago

it has, docs.python.org/3/library/stdtypes.html#str.maketrans do you use python 3 or python 2?

Crashberry py Over a year ago

python 3, but in edX, not a full python lib

Paweł Kordowski Over a year ago

not really, and I guess you want to return something from your function, where do you define character_set and secret_key? I would like to see the whole code

Crashberry py Over a year ago

character_set = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 " secret_key = "Dd18Abz2EqNPW hYTOjBvtVlpXaH6msFUICg4o0KZwJeryQx3f9kSinRu5L7cGM"

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