Encoding/Decoding

Encoding:

[code py]
chars = ['', '', '', '', '', '', '', '', '', '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', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '.', ' ', '_']


def encode (val):
    letternum = 1
    val = str(val)
    encoded = ""

    for i in range (1, len(str(val))):
       encoded = str(encoded) + str(chars.index(val[letternum-1]))
       letternum += 1


    return int(encoded + "00")


print(encode(input("Enter a word: ")))
[/code]


Decoding:

[code py]
chars = ['', '', '', '', '', '', '', '', '', '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', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '.', ' ', '_']


def decode (val):
    letternum = 1
    value = ""
    idx = None

    while True:
        val = str(val)
        idx = val[letternum-1] + val[letternum]
        letternum += 2
        if int(idx) < 1:
            break
        value = value + chars[int(idx) - 1]
    return value


print(decode(input("Enter an encoded value: ")))
[/code]