[slt2021]

I never do 1+”1” in my code, so this example is not useful to me.

I do however annotate types and expect Python to respect type annotations which is not the case. Then I dont understand what is point of annotating types if they are not respected?

If your argument that Python doesn’t convert from one type to another - well, it doesn’t need to do that if doesn’t care about types in the first place and lets you pass any junk into any method (and this is #1 thing that type system is supposed to prevent)

Is it only for documentation so that people reading code could understand what types to pass?

[dsemi]

Python type annotations were added to be used by an external type checker, so no they are not enforced by the interpreter itself.

This was an explicit decision: https://peps.python.org/pep-0484/#non-goals

[TheCleric]

Python type hinting is not useful at runtime (in fact it's flat out ignored). It is useful at "linting" time when run through mypy.