[coldtea]

>Virtually nobody in practice uses any of these.† Java binaries are in practice JVM bytecode in classfiles. Python programs are run by the Python interpreter.

The "Virtually nobody" this is because the main use case for Python and Java are as server side languages (both) and scripting languages (Python). In those cases people are expected to have or to setup the appropriate runtime beforehand.

But for people who want to ship apps to end users (customers and consumers) with Java and Python, the bundling thing is very very common.

People using them in the end user space, regularly do it this exact way. For most of them, you don't even get to know what they use underneath.

Some examples:

- Dropbox (uses and bundles Python in the app).

- Vuze torrent client (previously Azureus and very popular in its prime) bundles a JRE (for when you don't have an installed one).

- LightTable is just a JS runtime bundled with Webkit as a standalone app.