Python Bytes: #320 The Bug Is In The JavaScript :

January 24, 2023 January 24, 2023

Python Bytes: #320 The Bug Is In The JavaScript
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<a href='https://www.youtube.com/watch?v=uy04vHILEtY' style='font-weight: bold;'>Watch on YouTube</a> About the show Sponsored by us! Support our work through: <ul> <li>Our <a href="https://training.talkpython.fm/">courses at Talk Python Training</a></li> <li><a href="https://testandcode.com/">Test & Code</a> Podcast</li> <li><a href="https://www.patreon.com/pythonbytes">Patreon Supporters</a></li> </ul> Connect with the hosts <ul> <li>Michael: <a href="https://fosstodon.org/@mkennedy">@[email protected]</a></li> <li>Brian: <a href="https://fosstodon.org/@brianokken">@[email protected]</a></li> <li>Show: <a href="https://fosstodon.org/@pythonbytes">@[email protected]</a></li> </ul> Join us on YouTube at <a href="https://pythonbytes.fm/stream/live">pythonbytes.fm/stream/live</a> to be part of the audience. Usually Tuesdays at 11am PT. Older video versions available there too. Brian #1: <a href="https://github.com/executablebooks/markdown-it-py">markdown-it-py</a> <ul> <li>Yes. another markdown parser.</li> <li><a href="https://github.com/Textualize/rich/releases/tag/v13.2.0">Rich recently switched markdown parsers</a>, from <code>commonmark</code> to <code>markdown-it-py</code>.</li> <li>Let’s look at those a bit.</li> </ul> Michael #2: <a href="https://github.com/approximatelabs/sketch">Sketch</a> <ul> <li>via Jake Firman</li> <li>Sketch is an AI code-writing assistant for pandas users that understands the context of your data</li> <li>A Natural Language interface that successfully navigates many tasks in the data stack landscape. <ul> <li>Data Cataloging: <ul> <li>General tagging (eg. PII identification)</li> <li>Metadata generation (names and descriptions)</li> </ul></li> <li>Data Engineering: <ul> <li>Data cleaning and masking (compliance)</li> <li>Derived feature creation and extraction</li> </ul></li> <li>Data Analysis: <ul> <li>Data questions</li> <li>Data visualization</li> </ul></li> </ul></li> <li>Watch the video on the GitHub page for a quick intro</li> </ul> Brian #3: <a href="https://pythontest.com/fix-circular-import-python-typing-protocol/">Fixing Circular Imports in Python with Protocol</a> <ul> <li>Built on <a href="https://hynek.me/articles/python-subclassing-redux/">Subclassing in Python Redux</a> from Hynek <ul> <li>We covered this in the summer of 2021, <a href="https://pythonbytes.fm/episodes/show/240/this-is-github-your-pilot-speaking">episode 240</a></li> <li>However, I re-read it recently due to a typing problem</li> <li>Problem is when an object passes itself to another module to be called later. <ul> <li>This is common in many design patterns, including just normal callback functions.</li> <li>Normally not a problem with Python, due to duck typing.</li> <li>But with type hints, suddenly it seems like both modules need types from the other.</li> </ul></li> <li>So how do you have two modules use types from each other without a circular import.</li> <li>Hynek produces two options <ul> <li>Abstract Data Types, aka Interfaces, using the <code>abc</code> module <ul> <li>Requires a third interface class</li> </ul></li> <li>Structural subtyping with <code>Protocol</code> <ul> <li>This is what I think I’ll use more often and I’m kinda in love with it now that I understand it.</li> <li>Still has a third type, but one of the modules doesn’t have to know about it.</li> </ul></li> <li>"Structural Subtyping : Structural subtyping is duck typing for types: if your class fulfills the constraints of a <code>[Protocol](https://ift.tt/H5OV1Sm>, it’s automatically considered a subtype of it. Therefore, a class can implement many <code>Protocol</code>s from all kinds of packages without knowing about them!”</li> </ul></li> </ul></li> <li>The <a href="https://pythontest.com/fix-circular-import-python-typing-protocol/">Fixing Circular Imports in Python with Protocol</a> article walks through one example of two classes talking with each other, typing, circular imports, and fixing them with Protocol</li> </ul> Michael #4: <a href="https://github.com/salabim/unrepl">unrepl</a> <ul> <li>via/by Ruud van der Ham</li> <li>We’ve seen the code samples: <div class="codehilite"> <pre><code>>>> board = [] >>> for i in range(3): ... row = ['_'] * 3 ... board.append(row) ... >>> board [['_', '_', '_'], ['_', '_', '_'], ['_', '_', '_']] >>> board\[2\][0] = 'X' >>> board [['_', '_', '_'], ['_', '_', '_'], ['X', '_', '_']] </code></pre> </div></li> <li>But you cannot really run this code. You can’t paste it into a REPL yourself nor can you put it into a .py file.</li> <li>So you unrepl it: Copying the above code to the clipboard and run unrepl.</li> <li>Paste the result and now you can.</li> <li>Unrepl can be used as a command line tool but also as a module.</li> <li>The REPL functionality of underscore (_) to get access to the last value is also supported.</li> </ul> Extras Michael: <ul> <li>You'll want to update your git ASAP.</li> <li>Get course releases at Talk Python <a href="https://training.talkpython.fm/courses/rss">via RSS</a></li> <li><a href="https://fosstodon.org/@cobler/109718505946298680">Gist</a> for using Turnstile with Python + Pydantic</li> </ul> Joke: <a href="https://www.youtube.com/watch?v=jxi0ETwDvws">there's a bug in the js</a> <ul> <li>You’ve checked all your database indexes, </li> <li>You’ve tuned all your API hooks,</li> <li>You’re starting to think</li> <li>That you might need a drink,</li> <li>Because there’s only one place left to look:</li> <li>…</li> <li>There must be a bug in the javascript</li> <li>Because everything else was built properly</li> <li>But the frontend’s a pile of crap ;)</li> </ul>
January 24, 2023 at 01:30PM
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