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attrs v16.0.0 Release Notes

Release Date: 2016-05-23 // almost 8 years ago

  • Backward-incompatible Changes:

    • 👍 Python 3.3 and 2.6 are no longer supported. They may work by chance but any effort to keep them working has ceased.

    The last Python 2.6 release was on October 29, 2013 and is no longer supported by the CPython core team. Major Python packages like Django and Twisted dropped Python 2.6 a while ago already.

    Python 3.3 never had a significant user base and wasn't part of any distribution's LTS release.

    🔄 Changes: ^

    • __slots__ have arrived! Classes now can automatically be slotted <https://docs.python.org/3/reference/datamodel.html#slots>-style (and save your precious memory) just by passing slots=True. #35 <https://github.com/python-attrs/attrs/issues/35>
    • 👍 Allow the case of initializing attributes that are set to init=False. This allows for clean initializer parameter lists while being able to initialize attributes to default values. #32 <https://github.com/python-attrs/attrs/issues/32>_
    • attr.asdict() can now produce arbitrary mappings instead of Python dict\ s when provided with a dict_factory argument. #40 <https://github.com/python-attrs/attrs/issues/40>_
    • 🐎 Multiple performance improvements.