.. title: Discovering Descriptors
.. slug: discovering-descriptors
.. date: 2017-06-09 20:21:27 UTC+02:00
.. tags: talks, python, descriptors
.. category:
.. link:
.. description:
.. type: text

This talk was presented at `PyCon CZ 2017 <https://cz.pycon.org/2017/>`_ and
`EuroPython 2017`_. Here are the references and resources for the presentation.

The code used for the talk, is available `here
<https://gist.github.com/rmariano/a359fe6b0c650589df68c9619c9354f0>`_ and
contains some explanations along with the examples.

.. TEASER_END


Slides
^^^^^^

.. raw:: html


	<script async class="speakerdeck-embed" data-id="ef1b8b0b00b04c019c5592d9d91d7753" data-ratio="1.77777777777778" src="//speakerdeck.com/assets/embed.js"></script>

Video
^^^^^
This is the recording of the talk presented at `EuroPython 2017`_.

.. youtube:: TAuC086NNmo


References
^^^^^^^^^^

To learn more about descriptors, you could check some of the following
references, used as base for the talk:

* `Fluent Python - by Luciano Ramalho
  <http://shop.oreilly.com/product/0636920032519.do>`_: This book has a great
  cover of all topics of Python, and descriptors is no exception. Starting the
  section V of meta-programming, the chapter 20 contains a profound
  explanation of the internals of descriptors and how they work.

* `Python cookbook (3rd edition) - David Beazley & Brian Jones
  <http://shop.oreilly.com/product/0636920027072.do>`_: Contains great examples
  of Python code, that help explaining advanced topics, such as descriptors,
  decorators, and more.

* `Python descriptors HowTo
  <https://docs.python.org/3.6/howto/descriptor.html>`_: The nicest thing about
  this guide is not only that helps a lot on the understanding of descriptors,
  but also that here you can find equivalent implementations of many built-in
  descriptors in Python, for example those for ``@property``, ``@classmethod``,
  etc. This helps a lot on the understanding of the internals of Python, and
  illustrates a part of the code that is implemented in ``C`` in ``CPython``.

* `Python data model
  <https://docs.python.org/3/reference/datamodel.html#descriptors>`_: has a
  section explaining the methods of the *descriptor protocol*, and how they're
  invoked.

* `PEP-487 <https://www.python.org/dev/peps/pep-0487/>`_ introduces
  ``__set_name__``.


.. _EuroPython 2017: https://ep2017.europython.eu/conference/talks/discovering-descriptors