Python isn't a glue language. It's the lingua franca of most programmers in the workforce at this point in history.
Try hiring some expert C++ programmers, or even competent Java programmers. They're in the minority. What you get instead is barely competent grads who only know Python. What do you do with those grads after you've hired them?
1) teach the grads a strongly typed industrial strength language so they can contribute.... eventually
2) develop your new projects in Python because the grads can be productive straightaway, and the long term issues with Python can be pushed off to a future manager.
Which brings me to my point: Python should be frozen as is. No more development. Tinkering with it just because some people want to contribute and get visibility in open source is not a good cost/benefit outcome for humanity.
Freeze Python. It's the modern BASIC. Move all the existing developers to a new, unrelated programming language project. Give them free reign to do whatever they want there.