Changelog
### 20.3.0
```
-------------------
Backward-incompatible Changes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- ``attr.define()``, ``attr.frozen()``, ``attr.mutable()``, and ``attr.field()`` remain **provisional**.
This release does **not** change change anything about them and they are already used widely in production though.
If you wish to use them together with mypy, you can simply drop `this plugin <https://gist.github.com/hynek/1e3844d0c99e479e716169034b5fa963file-attrs_ng_plugin-py>`_ into your project.
Feel free to provide feedback to them in the linked issue 668.
We will release the ``attrs`` namespace once we have the feeling that the APIs have properly settled.
`668 <https://github.com/python-attrs/attrs/issues/668>`_
Changes
^^^^^^^
- ``attr.s()`` now has a *field_transformer* hook that is called for all ``Attribute``\ s and returns a (modified or updated) list of ``Attribute`` instances.
``attr.asdict()`` has a *value_serializer* hook that can change the way values are converted.
Both hooks are meant to help with data (de-)serialization workflows.
`653 <https://github.com/python-attrs/attrs/issues/653>`_
- ``kw_only=True`` now works on Python 2.
`700 <https://github.com/python-attrs/attrs/issues/700>`_
- ``raise from`` now works on frozen classes on PyPy.
`703 <https://github.com/python-attrs/attrs/issues/703>`_,
`712 <https://github.com/python-attrs/attrs/issues/712>`_
- ``attr.asdict()`` and ``attr.astuple()`` now treat ``frozenset``\ s like ``set``\ s with regards to the *retain_collection_types* argument.
`704 <https://github.com/python-attrs/attrs/issues/704>`_
- The type stubs for ``attr.s()`` and ``attr.make_class()`` are not missing the *collect_by_mro* argument anymore.
`711 <https://github.com/python-attrs/attrs/issues/711>`_
----
```
Links
- PyPI: https://pypi.org/project/attrs
- Changelog: https://pyup.io/changelogs/attrs/
- Homepage: https://www.attrs.org/
This PR updates attrs from 20.2.0 to 20.3.0.
Changelog
### 20.3.0 ``` ------------------- Backward-incompatible Changes ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - ``attr.define()``, ``attr.frozen()``, ``attr.mutable()``, and ``attr.field()`` remain **provisional**. This release does **not** change change anything about them and they are already used widely in production though. If you wish to use them together with mypy, you can simply drop `this plugin <https://gist.github.com/hynek/1e3844d0c99e479e716169034b5fa963file-attrs_ng_plugin-py>`_ into your project. Feel free to provide feedback to them in the linked issue 668. We will release the ``attrs`` namespace once we have the feeling that the APIs have properly settled. `668 <https://github.com/python-attrs/attrs/issues/668>`_ Changes ^^^^^^^ - ``attr.s()`` now has a *field_transformer* hook that is called for all ``Attribute``\ s and returns a (modified or updated) list of ``Attribute`` instances. ``attr.asdict()`` has a *value_serializer* hook that can change the way values are converted. Both hooks are meant to help with data (de-)serialization workflows. `653 <https://github.com/python-attrs/attrs/issues/653>`_ - ``kw_only=True`` now works on Python 2. `700 <https://github.com/python-attrs/attrs/issues/700>`_ - ``raise from`` now works on frozen classes on PyPy. `703 <https://github.com/python-attrs/attrs/issues/703>`_, `712 <https://github.com/python-attrs/attrs/issues/712>`_ - ``attr.asdict()`` and ``attr.astuple()`` now treat ``frozenset``\ s like ``set``\ s with regards to the *retain_collection_types* argument. `704 <https://github.com/python-attrs/attrs/issues/704>`_ - The type stubs for ``attr.s()`` and ``attr.make_class()`` are not missing the *collect_by_mro* argument anymore. `711 <https://github.com/python-attrs/attrs/issues/711>`_ ---- ```Links
- PyPI: https://pypi.org/project/attrs - Changelog: https://pyup.io/changelogs/attrs/ - Homepage: https://www.attrs.org/