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exception with from future annotations

See original GitHub issue

example:

from __future__ import annotations

import marshmallow_dataclass

@marshmallow_dataclass.dataclass
class C:
    s: str

result

AttributeError: 'str' object has no attribute '__dataclass_fields__'

I believe the problem is in _ _ init _ _.py:

    # Base types
    if typ in _native_to_marshmallow:
        return _native_to_marshmallow[typ](**metadata)

since type is ‘str’ instead of str, the base type isn’t found

marshmallow-dataclass==6.0.0c1
python==3.7.2

Issue Analytics

State:
Created 4 years ago
Reactions:9
Comments:10 (8 by maintainers)

Top GitHub Comments

4reactions

JamieMcKernanKaizencommented, Aug 12, 2021

Has there been any update on this? It still seems to be a bug that exists.

2reactions

AleksanderPawlakcommented, Dec 17, 2021

@lovasoa I’ve prepared improved version of this PR: https://github.com/lovasoa/marshmallow_dataclass/pull/54 here: https://github.com/lovasoa/marshmallow_dataclass/pull/170 All todos/fixme are resolved, could you please look at it?

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