This was discussed here: https://bugs.python.org/issue46757
This came up because I had a dataclass subclass to flax.linen.Module that had its own post-init. When I figured out that I needed to call super, I did so. Later, when I refactored my code to remove the superclass, the super-call was broken. It have been much simpler to always call super in __post_init__ from the start. The proposal on the bug report was to get in the habit of doing: if hasattr(super(), "__post_init__"): super().__post_init__() or: try: post_init = super().__post_init__ except AttributeError: pass else: post_init() I think it will be difficult to convince projects to do this. Best, Neil
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