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Request to use polars dataframe package directly #809
Description
Thank you for creating a great package.
polars is a next-generation high-performance dataframe package that will replace pandas.
After converting polars to pandas using to_pandas(), you can use the feature-engine package.
However, it would be even better if you could directly process polars dataframe in the feature-engine package!
Have a nice week :)
Activity
solegalli commentedon Sep 4, 2024
Hey @jnhyeon
I agree with you: adding support for polars is a much needed improvement.
It's also a major undertaking because Feature-engine was designed with pandas in mind, so most of its functionality is based on pandas.
I'll need to get myself familiar with polars first, to get a clear view of the workload needed, or find someone with expertise that could take this forward.
So in principle, I agree, in practice, I am not sure how soon we can move forward with this.
Comparing the number of monthly downloads of pandas and polars, I think pandas is here to stay for the foreseeable future as well.
hkrutzer commentedon Oct 30, 2024
In case you haven't seen it, https://github.com/narwhals-dev/narwhals may be helpful.
jnhyeon commentedon Oct 31, 2024
Thank you so much for introducing such a great package.
Have a nice day :)
gibou-g commentedon Jul 25, 2026
@solegalli got some ideas on this and keen to discuss further
solegalli commentedon Jul 26, 2026
Hi @gibou-g
thanks for your message. Would be happy to discuss your ideas. I sort of started with the implementation here #965
Like @hkrutzer said, narwhals seems to be the path forward.