Maybe I lack a bit in creativity: but what purpose does this serve? Almost all machines have a python or even perl interpreter if you really need to go there.
What you think is ubiquitous is actually pretty narrow, and your perspective is biased based on your own experience; by "machines" you could mean containers, VMs (of a dozen different virtualization technologies), on a bunch of OSes and OS variants let alone distributions of same. You probably think something like an embedded Linux on a fleet of soft switches is a "niche case" but in the real world people work on these kinds of things all the time.
I don't think Python is as ubiquitous as you think is is; but regardless, mere presence is not the only problem. What Python are you even talking about? Which version? How is the user supposed to handle dependencies?
If something like this has utility, it's to minimize the configuration management problem you're giving the user. "Use Python" is definitely not the answer to that.
This doesn't seem to be a terribly good implementation of the idea, but it's not a bad idea, on its own.
