Topics covered in this episode:

<ul>
	<li><a href="https://nedbatchelder.com/blog/202507/coveragepy_regex_pragmas.html?featured_on=pythonbytes">Coverage.py regex pragmas</a></li>
<li>* <a href="https://pypi.org/project/yore/?featured_on=pythonbytes">Python of Yore</a>*</li>
<li>* <a href="https://github.com/dantebben/nox-uv?featured_on=pythonbytes">nox-uv</a>*</li>
<li>* A couple Django items*</li>
<li>Extras</li>
<li>Joke</li>

</ul><a href='https://www.youtube.com/watch?v=HCRfjkbSbmE' style='font-weight: bold;'data-umami-event="Livestream-Past" data-umami-event-episode="444">Watch on YouTube</a>

About the show

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Connect with the hosts

<ul>
<li>Michael: <a href="https://fosstodon.org/@mkennedy">@mkennedy@fosstodon.org</a> / <a href="https://bsky.app/profile/mkennedy.codes?featured_on=pythonbytes">@mkennedy.codes</a> (bsky)</li>
<li>Brian: <a href="https://fosstodon.org/@brianokken">@brianokken@fosstodon.org</a> / <a href="https://bsky.app/profile/brianokken.bsky.social?featured_on=pythonbytes">@brianokken.bsky.social</a></li>
<li>Show: <a href="https://fosstodon.org/@pythonbytes">@pythonbytes@fosstodon.org</a> / <a href="https://bsky.app/profile/pythonbytes.fm">@pythonbytes.fm</a> (bsky)</li>
</ul>

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Brian #1: <a href="https://nedbatchelder.com/blog/202507/coveragepy_regex_pragmas.html?featured_on=pythonbytes">Coverage.py regex pragmas</a>

<ul>
<li>Ned Batchelder</li>
<li>The regex implementation of how <a href="http://coverage.py?featured_on=pythonbytes">coverage.py</a> recognizes pragmas is pretty amazing.</li>
<li>It’s extensible through plugins

<ul>
<li><a href="https://pypi.org/project/covdefaults/?featured_on=pythonbytes">covdefaults</a> adds a bunch of default exclusions, and also platform- and version-specific comment syntaxes.</li>
<li><a href="https://pypi.org/project/coverage-conditional-plugin/?featured_on=pythonbytes">coverage-conditional-plugin</a> gives you a way to create comment syntaxes for entire files, for whether other packages are installed, and so on.</li>
</ul></li>
<li>A change from last year (as part of coverage.py 7.6 allows multiline regexes, which let’s us do things like:

<ul>
<li>Exclude an entire file with <code>\\A(?s:.*# pragma: exclude file.*)\\Z</code></li>
<li>Allow start and stop delimiters with <code># no cover: start(?s:.*?)# no cover: stop</code></li>
<li>Exclude empty placeholder methods with <code>^\\s*(((async )?def .*?)?\\)(\\s*->.*?)?:\\s*)?\\.\\.\\.\\s*(#|$)</code></li>
<li>See Ned’s article for explanations of these</li>
</ul></li>
</ul>

Michael #2: <a href="https://pypi.org/project/yore/?featured_on=pythonbytes">Python of Yore</a>

<ul>
<li>via Matthias</li>
<li>Use <code>YORE: ...</code> comments to highlight CPython version dependencies.
<div class="codehilite">
<pre><code># YORE: EOL 3.8: Replace block with line 4.
if sys.version_info < (3, 9):
from astunparse import unparse
else:
from ast import unparse
</code></pre>
</div></li>
</ul>

Then check when they go out of support:

<div class="codehilite">
<pre><code>$ yore check --eol-within &#39;5 months&#39;
./src/griffe/agents/nodes/_values.py:11: Python 3.8 will reach its End of Life within approx. 4 months
</code></pre>
</div>

Even fix them with <code>fix</code> .

Michael #3: <a href="https://github.com/dantebben/nox-uv?featured_on=pythonbytes">nox-uv</a>

<ul>
<li>via John Hagen</li>
<li>What nox-uv does is make it very simple to install uv extras and/or dependency groups into a nox session's virtual environment.</li>
<li>The versions installed are constrained by uv's lockfile meaning that everything is deterministic and pinned.</li>
<li>Dependency groups make it very easy to install only want is necessary for a session (e.g., only linting dependencies like Ruff, or main dependencies + mypy for type checking).</li>
</ul>

Brian #4: A couple Django items

<ul>
<li>Stop Using Django's squashmigrations: There's a Better Way
<ul>
<li>Johnny Metz</li>
<li>Resetting migrations is sometimes the right thing.</li>
<li>Overly simplified summary: delete migrations and start over</li>
</ul></li>
<li>dj-lite
<ul>
<li>Adam Hill</li>
<li>Use SQLite in production with Django</li>
<li>“Simplify deploying and maintaining production Django websites by using SQLite in production. <code>dj-lite</code> helps enable the best performance for SQLite for small to medium-sized projects. It requires Django 5.1+.”</li>
</ul></li>
</ul>

Extras

Brian:

<ul>
<li>Test & Code 237: FastAPI Cloud with Sebastian Ramirez
<ul>
<li>will be out later today</li>
</ul></li>
<li>pythontest.com: pytest fixtures nuts and bolts - revisited
<ul>
<li>A blog series that I wrote a long time ago.</li>
<li>I’ve updated it into more managable bite-sized pieces, updated and tested with Python 3.13 and pytest 8</li>
</ul></li>
</ul>

Michael:

<ul>
<li>New course: <a href="https://training.talkpython.fm/courses/just-enough-python-for-data-scientists?featured_on=pythonbytes">Just Enough Python for Data Scientists</a></li>
<li><a href="https://www.youtube.com/watch?v=Uh8CMtaWPpc">My live stream about uv</a> is now on YouTube</li>
<li><a href="https://cursor.com/en/cli?featured_on=pythonbytes">Cursor CLI</a>: Built to help you ship, right from your terminal.</li>
</ul>

Joke: <a href="https://www.reddit.com/r/programminghumor/s/90oFJlauGv?featured_on=pythonbytes">Copy/Paste</a>

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