Description
In March'20 there was a very detailed discussion about introduction a new __dataframe__ protocol: https://discuss.ossdata.org/t/a-dataframe-protocol-for-the-pydata-ecosystem/267. The purpose of it is being able to exchange data between different implementations, or export data to (e.g.) Apache Arrow or NumPy.
There's a strawman implementation at wesm/dataframe-protocol#1.
The discussion went a little all over the place, with many people misunderstanding the main purpose was data exchange rather than providing an API to manipulate or do computations with a dataframe. That would be a much larger topic, and something this consortium aims to deliver an RFC for.
That said, the __dataframe__ topic is very much related, and is also a potentially interesting example of a cross-dataframe-library topic that could really benefit from having a detailed RFC with requirements and use cases. We should consider picking up that topic, and consider lessons from it in community engagement.