Android Question how connect android (b4a)to server(python)

hi guys
I want to connect between Android and Python through Socket Programming I want to send a photo or camera through the client to the server that is python: so that it can be online or live, The problem is: I do not know what type of data sent to the server should be! For example, for this type of data type, this method is used for send data to Python, they use this method !! How is it for a photo or camera?
send.Write(cmd.GetBytes("UTF-8"))
thanks