/
restaurant_pydantic.py
64 lines (52 loc) · 1.36 KB
/
restaurant_pydantic.py
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import yaml
from pydantic import ValidationError
from pydantic.dataclasses import dataclass
from typing import Literal, List, Optional, TypedDict, Union
@dataclass
class AccountAndRoutingNumber():
account_number: str
routing_number: str
@dataclass
class BankDetails:
bank_details: AccountAndRoutingNumber
@dataclass
class Address:
address: str
AddressOrBankDetails = Union[Address, BankDetails]
Position = Literal['Chef', 'Sous Chef', 'Host',
'Server', 'Delivery Driver']
@dataclass
class Dish:
name: str
price_in_cents: int
description: str
picture: Optional[str] = None
@dataclass
class Employee:
name: str
position: Position
payment_details: AddressOrBankDetails
@dataclass
class Restaurant:
name: str
owner: str
address: str
employees: list[Employee]
dishes: list[Dish]
number_of_seats: int
to_go: bool
delivery: bool
def load_restaurant(filename: str) -> Restaurant:
with open(filename) as yaml_file:
data = yaml.safe_load(yaml_file)
return Restaurant(**data)
try:
restaurant = load_restaurant("code_examples/chapter14/missing.yaml")
assert False, "Should have failed"
except ValidationError:
pass
try:
restaurant = load_restaurant("code_examples/chapter14/wrong_type.yaml")
assert False, "Should have failed"
except ValidationError:
pass