Because we declared name as an int already, and input by default returns a string, the type checker would complain. The code would still run, however, since type hints are not used at runtime.

To memoize a function in Python, ... (say, only the integers 1 through 100), ... How to use template strings in Python 3.14. May 14, 2025 6 mins. Show me more.

I don't want to dwell on how all of this works, including inner functions and Python's scoping rules. I do, however, want to ask the question "how can you use Mypy to check all of this?" You could ...