potential use cases

[MarcoGorelli]

I'm just collecting some projects I notice which may benefit from Narwhals, or who have shown interest. Some of these might not actually end up being places where Narwhals is a good fit, I tend to jot things down if look like they might be from a first glance and then revisit in more detail later

• https://github.com/PRQL/pyprql/issues/374
• https://github.com/FBruzzesi/timebasedcv/issues/35 . Done, they've adopted Narwhals! ✅
• https://github.com/lvgig/tubular/issues/238
• https://github.com/ApeWorX/ape/issues/2013
• https://github.com/s3alfisc/pyfixest/issues/422 - they mentioned this in a PR. Using pandas via Narwhals avoids the setting-with-copy warning altogether, even for old versions, so it may be of interest
• https://github.com/Nixtla/tsfeatures/issues/29
• https://github.com/ydataai/ydata-profiling/issues/1129
• https://github.com/posit-dev/py-shiny/pull/1374 https://github.com/posit-dev/py-shiny/issues/1378
• https://github.com/depictio/depictio/issues/59
• https://github.com/pvlib/pvlib-python/issues/1926
• https://github.com/sktime/sktime/issues/5423 https://github.com/sktime/sktime/issues/5370
• https://github.com/vincentarelbundock/pymarginaleffects/issues/108
• https://github.com/rstudio/pins-python/issues/293
• https://github.com/sktime/sktime/issues/6091
• https://github.com/projectmesa/mesa-frames/issues/89

Altair work is now in-progress

if anyone happens to stumble upon this issue, feel free to add your project to the list

[FBruzzesi]

I will leave it here even though I imagine that it is quite challenging: skrub would be very suitable use case

[MarcoGorelli]

Thanks! Yeah I spoke to them a bit about it, and for now they're hand-rolling their own dispatch mechanism. I think it'll quickly get complex, especially around different pandas/Polars versions, and pandas' complicated type system - I think if we focus on getting Narwhals as easy to use as possible, and fully documented, and robust, then if they decide they'd like to use it, we can be ready 😎

[Excidion]

I am not sure if I can use this issue as a wish-list? If not please delete. In any case I suggested narwhals to featuretools who are looking for ways to speed up their feature matrix calculation: https://github.com/alteryx/featuretools/issues/1967

[dangotbanned]

Not affiliated with, but https://github.com/posit-dev/great-tables

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