Demonstrates a very basic way, in Python, how to know which fields of a dict you never accessed.

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A custom Python dictionary class that tracks which keys have been accessed, helping developers identify unused data fields in their applications. The TrackingDict class extends the built-in dict and maintains a set of accessed keys, providing properties to check both accessed and never-accessed keys. This is particularly useful for optimizing database queries, ensuring complete test coverage, and identifying redundant data retrieval in applications.

A Python dict that can report which keys you did not use

<p>this is clever, but i don’t see a real-world use case; i think it might be far removed from the nature of solving real-world problems.</p>
<p>it’s definitely a logic snippet i’d use to speed up random, one-off tasks that i decide to use code for instead of a pencil or calculator, like performing a quick calculation of the price of all pairs of shoes in my closet (super random!)</p>
