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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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<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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<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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<section>
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<img class="stretch" src="_images/python27-clock.png" alt="">
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</section>
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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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</section>
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<section>
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<img class="stretch" src="_images/scikit.jpeg" alt="">
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</section>
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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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<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">
|
|
|
|
|
<ul class="empty">
|
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|
|
<li><a href="https://functional.cafe/@juliobiason">https://functional.cafe/@juliobiason</a></li>
|
|
|
|
|
<li><a href="https://t.me/juliobiason">https://t.me/juliobiason</a></li>
|
|
|
|
|
<li>julio.biason@pm.me</li>
|
|
|
|
|
<li><a href="http://presentations.juliobiason.net">http://presentations.juliobiason.net</a></li>
|
|
|
|
|
</ul>
|
|
|
|
|
</div>
|
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|
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|
</section>
|
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|
</div>
|
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|
</div>
|
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|
|
<script src="reveal.js/lib/js/head.min.js"></script>
|
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|
|
<script src="reveal.js/js/reveal.js"></script>
|
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|
|
<script>
|
|
|
|
|
// Full list of configuration options available at:
|
|
|
|
|
// https://github.com/hakimel/reveal.js#configuration
|
|
|
|
|
Reveal.initialize({
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|
|
controls: true,
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|
|
progress: true,
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|
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|
history: true,
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|
center: true,
|
|
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|
|
// showNotes: true,
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|
|
|
|
|
|
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|
|
transition: 'slide', // none/fade/slide/convex/concave/zoom
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|
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|
|
// Optional reveal.js plugins
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|
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|
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dependencies: [
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{ src: 'reveal.js/lib/js/classList.js', condition: function() { return !document.body.classList; } },
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{ src: 'reveal.js/plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
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{ src: 'reveal.js/plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
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{ src: 'reveal.js/plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
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{ src: 'reveal.js/plugin/zoom-js/zoom.js', async: true },
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{ src: 'reveal.js/plugin/notes/notes.js', async: true }
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]
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});
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