[New-bugs-announce] [issue34363] dataclasses.asdict() mishandles dataclass instance attributes that are instances of subclassed typing.NamedTuple
Alex DeLorenzo
report at bugs.python.org
Wed Aug 8 15:41:25 EDT 2018
New submission from Alex DeLorenzo <alex.delorenzo at gmail.com>:
Example:
from typing import NamedTuple
from dataclasses import dataclass, asdict
class NamedTupleAttribute(NamedTuple):
example: bool = True
@dataclass
class Data:
attr1: bool
attr2: NamedTupleAttribute
data = Data(True, NamedTupleAttribute(example=True))
namedtuple_attr = asdict(data)['attr2']
print(type(namedtuple_attr.example))
>>> generator
One would expect that the printed type would be of type bool.
----------
components: Interpreter Core
messages: 323298
nosy: alexdelorenzo
priority: normal
severity: normal
status: open
title: dataclasses.asdict() mishandles dataclass instance attributes that are instances of subclassed typing.NamedTuple
type: behavior
versions: Python 3.7
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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34363>
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