Show HN: Laboratory, a Python port of GitHub's Scientist library for refactoring

Here&#x27;s some other ports of Scientist I&#x27;ve come across as well:<p>PHP<p><a href="https:&#x2F;&#x2F;github.com&#x2F;LartTyler&#x2F;Analyst" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;LartTyler&#x2F;Analyst</a><p>Javascript<p><a href="https:&#x2F;&#x2F;github.com&#x2F;trello&#x2F;scientist" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;trello&#x2F;scientist</a><p><a href="https:&#x2F;&#x2F;github.com&#x2F;Runnable&#x2F;scientist" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Runnable&#x2F;scientist</a><p><a href="https:&#x2F;&#x2F;github.com&#x2F;jirwin&#x2F;labrat" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jirwin&#x2F;labrat</a>

I imagine this can only work on getters? How do you use this when code makes state changes?

Before clicking the link I wondered how this would translate the block-based Ruby API into Python. Using Python&#x27;s with statement is quite nice here, I think.<p>The with statement is one of my favorite additions to the language. It&#x27;s a really flexible syntax to encapsulate control flow, exceptions, necessary cleanup steps… etc. etc.

Another Python one: <a href="https:&#x2F;&#x2F;github.com&#x2F;staticshock&#x2F;scientist.py" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;staticshock&#x2F;scientist.py</a>

Cool! Thanks for the tool!<p>&gt; Imagine you&#x27;ve implemented a complex caching strategy for some objects in your database and a stale cache is simply not acceptable.<p>I hope you have a formal specification of that cache. That will help ensure your design is correct in the first place before you even get to running it in code.<p>I shall be playing with this soon. Cheers!

Python? Isn&#x27;t Python dying? ;) <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11100251" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11100251</a>