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this post was submitted on 06 Aug 2024
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Learn Programming
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For following good practices, I highly recommend using a linter like ruff. I've learned a lot from it's explanations on why my code is bad.
Also I have tried to avoid using else statements.
how do you avoid using else, and why?
Disclaimer: I would only call my skill level as intermediate and would yield to any more senior developer here.
It's not a hard and fast rule, but you can usually write it without the else and in fewer lines.
So take for a very contrived example a function that needs to return a non boolean value for a boolean test. A use case could be if you need to figure out a string argument for another function, such as you need to determine if you need to keep the "first" or "last" duplicate in a dataframe (I'm thinking about pandas's df.drop_dupliactes method).
Continuing with the drop_duplicate thing let's say we have a dataframe we need to de-duplicate but for some reason if the overall length of the dataframe is even, we need to keep the first duplicate and if the dataframe length is odd we keep the last. I don't know why we would, but that was a very particular request from the customer and we need the money to buy more Warhammer figurines.
Here's an essay that goes into more detail
This is easier to think about for me: am I weird? Numbers can be interpreted as boolean in C but not in Go, which came later and is presumably an improvement.