Brněnské Pyvo – Anotované

Lednové Pyvo, poslední čtvrtek v měsíci v ArtBaru, jako obvykle. 🙂 🍻

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January Pyvo, last Thursday of the month at ArtBar, as usual. 🙂 🍻

The past and the __future__s of type annotations
Petr Viktorin

Let's look at Python's annotations (a.k.a. type hints) from the language point of view: how Python handles them, rather than what they mean to type checkers like mypy or modelling tools like dataclasses or pydantic.

We'll cover how it started (function annotations in 3.0, PEP 3107), how it's going (including variable annotations in 3.6, PEP 526), how we thought it would work (future annotations in 3.7, PEP 563), and how we now think it will work (deferred evaluation, in 3.14, PEP 649).