tagged_dataclasses
Support for tagged unions based on dataclasses via a lightweight mixin that is supported by mypy
from typing import Optional
from dataclasses import dataclass
from tagged_dataclasses import TaggedUnion
class A:
pass
@dataclass
class AB(A):
pass
@dataclass
class AC(A):
pass
@dataclass
class MyUnion(TaggedUnion[A]):
# Optional is not optional here (this is for better support in PyCharm)
first: Optional[AB] = None
second: Optional[AC] = None
x = MyUnion.from_value(AB())
# support for many variations
if x.first is not None:
pass
elif x.second is not None:
pass
# other
if x.kind == AB:
x.value()
elif x.kind == AC:
x.value()
1 maintainer
Release files for tagged-dataclasses 0.0.2
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Source distribution (sdist)
| File | Size | Uploaded | |
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| tagged_dataclasses-0.0.2.tar.gz | 3.1 kB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| tagged_dataclasses-0.0.2-py3-none-any.whl | Python 3 | none | any | Details |
Total release size:6.3 kB
Release files / tagged_dataclasses-0.0.2.tar.gz
| Download URL | tagged_dataclasses-0.0.2.tar.gz |
|---|---|
| Size | 3.1 kB |
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Release files / tagged_dataclasses-0.0.2-py3-none-any.whl
| Download URL | tagged_dataclasses-0.0.2-py3-none-any.whl |
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| Size | 3.2 kB |
| Tags | Python 3 |
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