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Important to upvote this. If there's room for improvement for Polars (which I'm sure there is), go and support the project. But don't fall for a commercial trap when there are competent open source tools available.

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No shade to the juggernaut of the open source software movement and everything it has/will enabled, but why the hate for a project that required people’s time and knowledge to create something useful to a segment of users and then expect to charge for using it in the future? Commercial trap seems to imply this is some sort of evil machination but it seems like they are being quite upfront with that language.

It's not hate for the project, it's hate for the deceptive rollout.

Basically it's a debate about how many dark patterns can you squeeze next to that "upfront language" before "marketing" slides into "bait-n-switch."

Not sure if evil or not, but it is unprofessional to use a tool that you dont know how much it will cost for your company in the future.

While I agree, it's worth noting that this project is a drop-in replacement (they claim that, at least), but Polars has a very different API. I much prefer Polars's API, but it's still a non-trivial cost to switch to it, which is why many people would instead explore Pandas alternatives instead.

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