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428 lines
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428 lines
13 KiB
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<title>PyCaxias 2020</title> |
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<meta name="description" content="Por que você deveria aprender Rust"> |
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<meta name="author" content="Julio Biason"> |
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<div class="reveal"> |
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<div class="slides"> |
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<section> |
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<section data-background="_images/pycaxias.png" data-header> |
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<h2 class="semi-opaque">PyCaxias 2020</h2> |
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</section> |
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</section> |
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<section> |
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<img src="_images/avatar-20170726.png" alt="Me" style="float:left;width:200px;" class="no-border"> |
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<div> |
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<ul class="empty"> |
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<li>Júlio Biason</li> |
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<li><a href="https://functional.cafe/@juliobiason">https://functional.cafe/@juliobiason</a></li> |
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<li><a href="https://t.me/juliobiason">https://t.me/juliobiason</a></li> |
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<li>julio.biason@pm.me</li> |
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</ul> |
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</div> |
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</section> |
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<section> |
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<ul> |
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<li>Co-coordenador do meetup <strong>PyTche</strong></li> |
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<li>Coordenador do meetup <strong>Rust in POA</strong></li> |
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<li>Co-coordenador do meetup <strong>Design de Código</strong></li> |
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<li>Palestrante do <strong>Tchelinux</strong></li> |
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</ul> |
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</section> |
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<section> |
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<h3>JulioBiason.me</h3> |
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<ul> |
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<li><a href="https://blog.juliobiason.me/">Blog</a></li> |
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<li><a href="https://presentations.juliobiason.me/">Presentations</a></li> |
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<li><a href="https://git.juliobiason.me/">Git</a></li> |
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<li><a href="https://resume.juliobiason.me/">CV/Resumé</a></li> |
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<li><a href="https://books.juliobiason.me/">Books</a></li> |
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</ul> |
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</section> |
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<section> |
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<h3>"Coisas Que Eu Aprendi Na Marra (Em 30 Anos de Desenvolvimento de Software)</h3> |
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<h3 class="fragment">😞</h3> |
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</section> |
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<section> |
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<h2>Python: Passado, Presente e Futuro</h2> |
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<p class="fragment">... na minha visão</p> |
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</section> |
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<section data-background="_images/past.jpg"> |
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<h2 class="semi-opaque">O Passado</h2> |
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</section> |
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<section> |
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<h3>Python 1.5</h3> |
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<img class="stretch" src="_images/python15.png" alt=""> |
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</section> |
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<section> |
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<h3>Python 1.5 (1998)</h3> |
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<ul> |
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<li><code>assert</code></li> |
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<li>raw strings (<code>r''</code>)</li> |
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<li>Novos métodos de dicionários: <code>.clear()</code>, <code>.copy()</code>, <code>.update()</code>, <code>.get()</code></li> |
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</ul> |
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</section> |
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<section> |
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<p><code>[expression] and [on_true] or [on_false]</code></p> |
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</section> |
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<section> |
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<p>"Vamos fazer um <i>browser</i> em Python!"</p> |
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</section> |
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<section> |
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<img class="stretch" src="_images/tilefile.jpg" alt=""> |
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</section> |
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<section> |
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<ul> |
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<li>Web Server</li> |
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<li class="fragment">Storage: <a href="https://docs.python.org/3/library/pickle.html?highlight=pickle#module-pickle">Pickle</a></li> |
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<li class="fragment">Atualizado storage: MySQL</li> |
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<li class="fragment">Criada toda uma camada para que o carregamento parecesse com leitura de pickles</li> |
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</ul> |
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<p class="fragment">Django 1.0: 2008</p> |
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</section> |
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<section> |
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<p>"É mais fácil pra mim vender AJAX e Rails do que Flash e Python."</p> |
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<p>-- Tilefile CEO</p> |
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</section> |
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<section> |
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<img class="stretch" src="_images/iplenix.png" alt=""> |
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<section> |
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<img class="stretch" src="_images/consuela.jpeg" alt=""> |
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</section> |
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<section data-background="_images/present.jpg"> |
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<h2 class="semi-opaque">O Presente</h2> |
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</section> |
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<section> |
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<img class="stretch" src="_images/the-witch-is-dead.png" alt=""> |
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</section> |
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<img class="stretch" src="_images/python27-clock.png" alt=""> |
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</section> |
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<img class="stretch" src="_images/python-usage.png" alt=""> |
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</section> |
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<section> |
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<img class="stretch" src="_images/ipython.png" alt=""> |
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</section> |
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<section> |
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<img class="stretch" src="_images/ipython-notebook.png" alt=""> |
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</section> |
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<section> |
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<img class="stretch" src="_images/jupyter.jpeg" alt=""> |
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<img class="stretch" src="_images/scikit.jpeg" alt=""> |
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</section> |
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<img class="stretch" src="_images/python-datascience.png" alt=""> |
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</section> |
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<img class="stretch" src="_images/guido-no-bdfl.png" alt=""> |
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</section> |
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<section data-background="_images/back-to-the-future.jpeg"> |
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<h2 class="semi-opaque">O Futuro</h2> |
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</section> |
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<section> |
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<p>You can't connect the dots looking forward; you can only connect them looking backwards.</p> |
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<p>-- Steve Jobs</p> |
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</section> |
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<section> |
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<p>No man is an island,<br> |
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Entire of itself,<br> |
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Every man is a piece of the continent,<br> |
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A part of the main.</p> |
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<p>-- John Donne</p> |
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</section> |
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<section> |
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<h2>Type Hinting: Love it</h2> |
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</section> |
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<section> |
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<p>"Mas Python não tem tipos!"</p> |
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<pre class="fragment"><code data-trim> |
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In [1]: type(object) |
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Out[1]: type |
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</code></pre> |
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</section> |
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<section> |
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<img class="stretch" src="_images/isso-nao-prova-nada.png" alt=""> |
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</section> |
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<section> |
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<pre><code data-trim> |
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In [4]: type("a") |
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Out[4]: str |
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In [5]: type(str) |
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Out[5]: type |
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</code></pre> |
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</section> |
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<section> |
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<pre><code data-trim> |
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def to_fahrenheit(temperature: int) -> int: |
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</code></pre> |
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</section> |
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<section> |
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<pre><code data-trim> |
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@dataclass |
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class Celcius: |
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temperature: int |
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def to_fahrenheit(temperature: Celcius) -> int: |
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</code></pre> |
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</section> |
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<section> |
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<h2>mypy</h2> |
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</section> |
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<section> |
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<img class="stretch" src="_images/tweet-python2020.png" alt=""> |
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</section> |
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<section> |
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<h2>??</h2> |
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<p class="fragment">None-aware operator (PEP 505)</p> |
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<pre class="fragment"><code data-trim> |
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a ??= 'value' |
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</code></pre> |
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<pre class="fragment"><code data-trim> |
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a = a if a is not None else 'value' |
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</code></pre> |
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</section> |
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<section> |
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<h2>@</h2> |
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<p class="fragment">Dedicated infix operator for matrix multiplication (PEP 465)</p> |
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</section> |
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<section> |
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<h2>|</h2> |
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<p class="fragment">Union Operator to Dict (PEP 584)</p> |
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<pre class="fragment"><code data-trim> |
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dict1.update(dict2) # in-place |
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</code></pre> |
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<pre class="fragment"><code data-trim> |
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dict3 = dict1 | dict2 |
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</code></pre> |
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<pre class="fragment"><code data-trim> |
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dict1 |= dict2 # same as .update() |
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</code></pre> |
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</section> |
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<section> |
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<h2>:=</h2> |
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<p class="fragment">Assignment Operator (PEP 572)</p> |
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<pre class="fragment"><code data-trim> |
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while chunk := file.read(8192): |
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process(chunk) |
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</code></pre> |
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</section> |
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<section> |
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<h2>@dict[key].attr[0].decorator</h2> |
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<p class="fragment">Relaxing Grammar Restrictions On Decorators (PEP 614)</p> |
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</section> |
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<section> |
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<h2>Steering Council <span class="fragment"> 🤔 </span></h2> |
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</section> |
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<section> |
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<h3>Python Positional-Only Parameters (PEP 570)</h3> |
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<pre><code data-trim> |
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pow(x, y, z=None, /) |
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... |
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>>> pow(x=5, y=3) |
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Traceback (most recent call last): |
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File "<stdin>", line 1, in <module> |
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TypeError: pow() takes no keyword arguments |
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</code></pre> |
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</section> |
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<section> |
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<p>"Without the ability to specify which parameters are |
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positional-only, library authors must be careful when |
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choosing appropriate parameter names."</p> |
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<h1 class="fragment">🤦</h1> |
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</section> |
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<section> |
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<img class="stretch" src="_images/chrysalis.jpeg" alt=""> |
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</section> |
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<section> |
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<img class="stretch" src="_images/oogway.jpeg" alt=""> |
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</section> |
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<section> |
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<img class="stretch" src="_images/fear.jpeg" alt=""> |
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</section> |
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<section> |
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<h1>??</h1> |
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</section> |
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<section data-background='_images/thats-all-folks.jpg'> |
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<div class="semi-opaque"> |
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<ul class="empty"> |
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<li><a href="https://functional.cafe/@juliobiason">https://functional.cafe/@juliobiason</a></li> |
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<li><a href="https://t.me/juliobiason">https://t.me/juliobiason</a></li> |
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<li>julio.biason@pm.me</li> |
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<li><a href="https://presentations.juliobiason.me">https://presentations.juliobiason.me</a></li> |
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</ul> |
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</div> |
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</section> |
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