from string.templatelib import Template, Interpolation 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 ...

Try running this program with Python 3.12 or Python 3.13 (the GIL version). On my AMD Ryzen 3600 six-core machine, it completes in about two seconds. With Python 3.13t, it completes in about 0.6 ...