I am writing an application for Android 2.3.5 (that will also be compatible with iOS). I wish to transfer data from the app's HTML/Javascript to a Python program on a server (which uses the Twisted engine to retrieve the data).

I've tried many things and looked at various forums, answers, tutorials, and web pages--including most of them here--and can't find an answer. Here's the relevant Javascript I have in my index.html file:

```
<script src="socket-lib/socket.io.js"></script>
<script type="text/javascript" charset="utf-8">
function sendData() {
    try {
        var socket = io.connect('http://mywebsite.com:12345');
        socket.on('connect', function(data) {
            socket.send('Hello.');
            socket.on('message', function (msg) {
                socket.send('This is where I send data?');
            });
        });
    }
    catch(err) {
        alert('ERROR: socket.io encountered a problem:\n\n' + err);
    }
} // end of sendData

```

If you can't tell, I'm still pretty confused how this works; I can't even test anything. The error that keeps coming up is `ReferenceError: io is not defined`. Some sites used something like `var io = require('socket.io');`. But then it results in the same error: `ReferenceError: require is not defined`.

I put the socket-lib folder in assets/www, where any other Javascript source should go. This is also where the index.html file is. Many sites use `<script src="/socket.io/socket.io.js"></script>`, but this makes no sense to me. Many sites also imply the use of node.js, but I never see it anywhere.

How can I make this work?

**Reply edits:**

I tried it in Chrome, and it's giving me an `Uncaught ReferenceError: require is not defined` for the socket.io.js file. So I decide to source in require.js right before it. Then it gives the error `Uncaught Error: Module name "socket.io-client" has not been loaded yet for context`. Since I'm not using this, I care not. When I try the connection, though, it gives the same `io is not defined` error. When I define it as `var io = require('socket.io')`, the error is `Error: Module name "socket.io" has not been loaded yet for context: _ http://requirejs.org/docs/errors.html#notloaded`. I looked at the website, and it doesn't help me at all. When I try to put "require" as a function argument, another error occurs: `TypeError: undefined is not a function`.