A superset of Python that compiles to C, Cython combines the ease of Python with the speed of native code. Here's a quick guide to making the most of Cython in your Python programs.

Given that, as shown above, functions are of type function, perhaps you can use that. But function isn't actually a recognized name in Python. Instead, you'll need to use the typing module, which ...

The CPython interpreter in Python 3.14 can use a feature in C code that uses tail calls between functions. When compiled with a C compiler that supports these features, CPython runs slightly faster.