Leggi il codice attentamente

from typing import TypedDict, NotRequired


class Address(TypedDict):
    street: str
    city: str


class User(TypedDict):
    email: str
    name: str
    age: NotRequired[int]
    address: NotRequired[Address]


# Required keys only
u1: User = {"email": "a@b.com", "name": "Ada"}
print(u1)
print(type(u1).__name__)
print(sorted(u1.keys()))

# All keys including NotRequired
u2: User = {
    "email": "b@c.com",
    "name": "Bob",
    "age": 30,
    "address": {"street": "1st", "city": "NYC"},
}
print(u2["address"]["city"])
print(u2.get("age", 0))

# Reflection on the TypedDict itself
print(sorted(User.__required_keys__))
print(sorted(User.__optional_keys__))

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