I don't think it matters who's first either; I'm just excited that Python's one of the first languages to implement these concepts beyond C#. Only used the term "scripting language" as a way to say "lighter-weight."
to be fair python3 is a pretty large distribution (by filesize and features), and it requires having the python interpreter to run code.
And a minimal working mono distro is pretty small.
Seriously, why does it matter? Is Python 3 really a "scripting language"? I don't think so. It's fairly close to, for example, C#, that has had these particular concepts for a while now. As have many other languages. Again, I don't think it matters that much who was "first".