Tracking issue for EA Series Operations Support

[ghost]

Stale

[jorisvandenbossche]

Series.isna which (via pd.core.dtypes.missing._isna_new) , calls np.asarray(obj). This is contrary to documentation which says:

This should not be the case (if it is, it is a bug that should be fixed). _isna_new calls the isna method on the object through _isna_ndarraylike

[ghost]

You're right. I don't know what happened, but I tested this again now and the method is called. Perhaps I was testing while I had an __array_function__ implemented in the EA.

Anyway, my mistake. sorry.

[jorisvandenbossche]

Perhaps I was testing while I had an array_function implemented in the EA.

If that is the case, it was not your mistake, and it would be interesting to know. Because the isna machinery should work regardless of having __array_function__ defined or not.

[simonjayhawkins]

@jorisvandenbossche closing as with the OP deleted this issue does not appear actionable.