With agents it no longer makes sense to tie yourself to Python's archaic development experience. How many type checkers are there? Package managers? Don't even get me started on cross-platform deployment.

Strongly typed, compiled languages have never been easier to use, and agents reap huge benefits from the tight feedback loop that the compiler provides. Moreover the benefits of the Python ecosystem are less significant today than anytime in the past 20 years. Need something that's only available in Python? Just point some agents at it and you can port it.