Find oud why overwriting is so slow

[lopollar]

In the whole process, this code is the slowest:

i='nucleus_boundaries' sdata.add_shapes( name=i, shapes=spatialdata.models.ShapesModel.parse( sdata[i][np.isin(sdata[i].index.values, sdata.table.obs.index.values)] ), overwrite=True, ) And I can't think of why, does anyone have an idea?

[lopollar]

It is because of np.isin on strings, if you add astype(int) for both, everything goes waaaay faster, like 100 times or so