Runtime typechecker for dataclass

$ pip install dataclass_utils

Example

check_type function

Check dataclass type recursively

from dataclass_utils import check_type
import dataclasses
from typing import List

@dataclasses.dataclass
class Foo:
    a: int
    b: List[List[int]]

import pytest

check_type(Foo(1, [[1])) # OK

with pytest.raises(TypeError):
    check_type(Foo(1, [[2, "foo"]])) # NG

See examples directory for more examples.

Features

• Recursively check type for each field in dataclass
  • check_type can be applied for nested dataclasses, nested containers
• No dependencies

Development

• make publish to test and publish