Add examples for handling strings and bytes with python bindings

[domire8]

As proposed in #66, it would be nice to clarify the usage of the Python bindings regarding the reception and sending of bytes vs strings.

An example snippet could go into the README

[JasperTan97]

So I am trying to understand what you mean here, but when I do:

    str_msg = "HELLO!"
    server.send_bytes(str_msg)
    str_msg = client.receive_bytes()
    print(str_msg)
    time.sleep(0.4)

I get b'HELLO!' instead of HELLO! as I expected. The additional b' and ' is the issue in question? And that the user should strip away these additional characters that get added when converting c++ strings into python?

The theory is explained as: https://realpython.com/lessons/defining-literal-bytes-object/

[domire8]

You can have a look at the tests, it is indeed expected that you get b'HELLO!' back. As discussed in #66, it's the responsibility of the receiver to decode and sanitize the bytes

[JasperTan97]

I understand. Sorry I think I misworded my question. What I meant to ask was, is this what the issue should deal with? I provide examples like this in the readme?

I am not particularly sure what the problem referred to in #66 is exactly. Is it the problem of "extra information" added around a byte literal, that we have decode/sanitize the received data.

[domire8]

Yeah, the goal is just to provide a code snippet that shows how to use this library.
At the beginning, I thought that if you do send_bytes("hello") then the return value of receive_bytes() should be "hello". However there is no easy and general solution that would enable this so it would be good to say in the README that the user can't expect that and has to decode and strip the return value of receive him/herself