feature wish: method returning last "meaningful" row

[gorn]

I guess the title says it all. It would be great to be able to get a range of rows (and perhaps columns) where there are meaningful data. At least something like get_last_row_with_data would do, but an iterator over nonempty rows would be even greater.

[gorn]

Aargh, it has already there - see used_rows_range ... nevermind, the iterator would still be great.

[gorn]

Ok, more on this. There is actually difference, between used_rows_range and what I need. used_rows_range gets the range which is "technically" used, but it is not the same as the nonempty rows. Typicall example is in an attachement.

used_rows_range.zip