Feature or enhancement
Add a new frozen_default parameter to
similar to the existing eq_default and order_default parameters.
Pitch
Frozen dataclasses are very popular when working with Jax (flax.struct.dataclass and tjax.dataclass), so being able to indicate that they are frozen by default would improve the user experience.
dataclass_transform is currently supported by Pyright/Pylance and Pyre. Both teams are in favor of implementing this new parameter. Since dataclass_transform supports kwargs for experimentation/extensibility, Pyright was already able to
for frozen_default.
All feedback on typing-sig has been in favor of this enhancement.
Previous discussion
Discussed in
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Linked PRs
gh-99957: Add frozen_default parameter on dataclass_transform #99958