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cattrs v0.5.0 Release Notes

Release Date: 2017-12-11 // over 6 years ago
    • 👍 structure/unstructure now supports using functions as well as classes for deciding the appropriate function.
    • added Converter.register_structure_hook_func, to register a function instead of a class for determining handler func.
    • added Converter.register_unstructure_hook_func, to register a function instead of a class for determining handler func.
    • vendored typing is no longer needed, nor provided.
    • 0️⃣ Attributes with default values can now be structured if they are missing in the input. (#15 <https://github.com/python-attrs/cattrs/pull/15>_)
    • | Optional attributes can no longer be structured if they are missing in the input. | In other words, this no longer works: | | .. code-block:: python | | @attr.s | class A: | a: Optional[int] = attr.ib() | | >>> cattr.structure({}, A) |
    • 🚚 cattr.typed removed since the functionality is now present in attrs itself. Replace instances of cattr.typed(type) with attr.ib(type=type).