> The primary reason, in my opinion, is the vast majority of Python libraries lack type annotations (this includes the standard library). When type annotations

> The primary reason, in my opinion, is the vast majority of Python libraries lack type annotations (this includes the standard library). When type annotations are available, it's already possible to compile Python to improve performance, using Mypyc. See for example https://blog.glyph.im/2022/04/you-should-compile-your-python-and-heres-why.html https://blog.glyph.im/2022/04/you-should-compile-your-python...