Encoding a message using a dictionary

Question

i am new to python programing, and was wondering if anyone could help me with encoding a message. for example if my dictionary is {'x': 'e', 'e': 'x'} and i would like to encode 'hello world' so that is prints 'hxllo world'

In [  ]: encode(code, "Hello World")
Out[  ]: 'Hxllo World'

Answer 1

You can do that using translate like so:

1. define your dictionary
2. use str.translate() to create translation table transtable
3. finally do "mystring".translate(transtable)
4. 'hxllo world', which is the required output

this makes use of the dictionary you are required to use. Just pass that dictionary as your code to your function encode.

Answer 2

You could do something like this:

def encode(code, string):
    result = ""
    for char in string:
        if char in code:
            result += code[char]
        else:
            result += char
    return result

Output:

>>> print(encode(d, "Hello World"))
Hxllo World