``attrs`` is written and maintained by `Hynek Schlawack <https://hynek.me/>`_.
The development is kindly supported by `Variomedia AG <https://www.variomedia.de/>`_.
It’s the spiritual successor of `characteristic <https://characteristic.readthedocs.org/>`_ and aspires to fix some of it clunkiness and unfortunate decisions. Both were inspired by Twisted’s `FancyEqMixin <https://twistedmatrix.com/documents/current/api/twisted.python.util.FancyEqMixin.html>`_ but both are implemented using class decorators because `sub-classing is bad for you <https://www.youtube.com/watch?v=3MNVP9-hglc>`_, m’kay?
The following folks helped forming ``attrs`` into what it is now:
Of course ``characteristic``\ ’s `hall of fame <https://characteristic.readthedocs.org/en/stable/license.html>`_ applies as well since they share a lot of code.