pandas (original) (raw)

Yes, indeed, good point. I was also thinking that, but in the end just wrote that it is "similar" functionality.

I think the main reason is to "avoid duplication"? (having the same functionality in both pandas and rpy2 is not needed, and anyhow, those who used pandas.rpy were in fact already using rp2)
Saying that rpy2 is better is not yet fully correct .. as there are still some things better in the pandas version to be ported (eg NaN handling, see the issue).