An ongoing list of pandas quirks
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This repo contains a few peculiar things I’ve learned about pandas that have made my life easier and my code faster. This post isn’t a friendly tutorial for beginners, but a friendly introduction to pandas weirdness.
What’s in this repo?
- pandas is column-major, which is why row-based operations are slow
SettingWithCopyWarning, or why we can’t have nice things
- Indexing and slicing
- Data exploration
- Common pitfalls
I’ll continue updating this repo as I have more time. As I’m still learning pandas quirks, feedback is much appreciated.