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https://github.com/kennethreitz/pydantic.git
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Eric Jolibois
b3f7b28f13
* fix: forward all the params of the stdlib `dataclass` when converted into _pydantic_ `dataclass` closes #2065 * add some documentation
40 lines
742 B
Python
40 lines
742 B
Python
import dataclasses
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from datetime import datetime
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from typing import Optional
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from pydantic import BaseModel, ValidationError
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@dataclasses.dataclass(frozen=True)
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class User:
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name: str
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@dataclasses.dataclass
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class File:
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filename: str
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last_modification_time: Optional[datetime] = None
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class Foo(BaseModel):
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file: File
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user: Optional[User] = None
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file = File(
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filename=['not', 'a', 'string'],
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last_modification_time='2020-01-01T00:00',
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) # nothing is validated as expected
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print(file)
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try:
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Foo(file=file)
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except ValidationError as e:
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print(e)
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foo = Foo(file=File(filename='myfile'), user=User(name='pika'))
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try:
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foo.user.name = 'bulbi'
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except dataclasses.FrozenInstanceError as e:
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print(e)
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