[Tutor] Practicing with sockets

[Danny Yoo]

>
>
> I also reread the docs at https://docs.python.org/2/howto/sockets.html and
> decided to remove the "b" from "open('myfile.png', 'wb') open('myfile.png',
> 'rb')  seeing how binary could be different depending on the machine and I
> have not yet learned how to deal with this.
>

Whoa, wait.  I think you're misunderstanding the point of binary mode.  You
_definitely_ need binary mode on when working with binary file formats like
PNG.  Otherwise, your operating system environment may do funny things to
the file content like treat the 0-character (NULL) as a terminator, or try
to transparently translate line ending sequences.


Would I be better off converting the image to base64 prior to sending it to
> the server, then decoding it on the server?
>

The socket approach is low-level: all you've got is a pipe that can send
and receive bytes.  It's _all_ binary from the perspective of the network
layer.  base64-encoding and decoding these bytes won't harm anything, of
course, but I don't see it helping either.
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