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pydantic/docs/examples/models_structural_pattern_matching.py
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rafael 7344374dd0 BaseModel: Document and test structural pattern matching (#3921)
* BaseModel: Add __match_args__ attribute to namespace

* changelog

* amend docs

* add tests

* Update changes/3920-irgolic.md

Co-authored-by: Samuel Colvin <samcolvin@gmail.com>

* Update .github/workflows/ci.yml

Co-authored-by: Samuel Colvin <samcolvin@gmail.com>

* rename test_match => test_structural_pattern_matching

* pytest.skip => pytest.mark.skipif

* Revert "BaseModel: Add __match_args__ attribute to namespace"

This reverts commit 79367356fddac90b047b10620dc895425ec25b40.

* adjust tests for kwarg only structural pattern matching

* adjust docs for kwarg only pattern matching

* changes: Support => Document

* fix docs?

Co-authored-by: Samuel Colvin <samcolvin@gmail.com>
2022-08-16 08:47:17 +02:00

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346 B
Python

from pydantic import BaseModel
class Pet(BaseModel):
name: str
species: str
a = Pet(name='Bones', species='dog')
match a:
# match `species` to 'dog', declare and initialize `dog_name`
case Pet(species='dog', name=dog_name):
print(f'{dog_name} is a dog')
# default case
case _:
print('No dog matched')