this post was submitted on 29 Aug 2023
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Python

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[โ€“] sem@lemmy.ml 6 points 1 year ago (2 children)

To be honest, for me it looks as very strange pattern.. If one wants to have static container with functions, there is Enums or classes.

[โ€“] Walnut356@programming.dev 2 points 1 year ago

It's most useful when you're using some data you already have as the dictionary key. A usecase i had for this was a binary file parser with 10 types of event markers. It was originally coded with if/elif, but performance was a pretty big consideration. Using the event markers as keys to a dictionary dispatch improved performance by about 15% and made the code significantly more readable.

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