string.templatelib is a new module in the standard library for Python 3.14 that holds the types we need: Template for the type hint to the function, and Interpolation to check the elements we ...

Similarly, the Python "string" type functions as a collection type to an extent, ... the programmer can use indices to replace the contents of a string. There are two methods to accomplish this.

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.

Learn how Mypy's type checking works with functions and generators. In my last two articles I've described some of the ways Mypy, a type checker for Python, can help identify potential problems with ...