Bug report
Dataclasses have an undocumented __dataclass_params__ class-attribute which appears to document the flags sent to the dataclass decorator:
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setattr(cls, _PARAMS, _DataclassParams(init, repr, eq, order, |
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unsafe_hash, frozen)) |
A few new flags have been added since the initial implementation of dataclasses. These don't seem to have been added to the __dataclass_params__ field. In the case of kw_only I think that makes sense - it's effectively controlled at a per-field level and the parameter to the dataclass decorator is just a convenience. However, the others seem like a genuine omission.
Your environment
I've just looked at the code for the current main branch.
Bug report
Dataclasses have an undocumented
__dataclass_params__class-attribute which appears to document the flags sent to thedataclassdecorator:cpython/Lib/dataclasses.py
Lines 903 to 904 in 6ec57e7
A few new flags have been added since the initial implementation of dataclasses. These don't seem to have been added to the
__dataclass_params__field. In the case ofkw_onlyI think that makes sense - it's effectively controlled at a per-field level and the parameter to thedataclassdecorator is just a convenience. However, the others seem like a genuine omission.Your environment
I've just looked at the code for the current main branch.