Its obscenely easy/consistent memory layout. It makes embedding it into another application straight-forward and easy to manage. Extending the host interface to

Its obscenely easy/consistent memory layout. It makes embedding it into another application straight-forward and easy to manage. Extending the host interface to the embedded scripts is very simple because of this. It's also serialize-able to a degree. Python is also a decent glue language but creating a Python interpreter is a bunch more work and the API is a bit harder to work with.