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I was trying to build a custom table data source and ran into a problem. It seems that calling delete_rows with a tuple argument doesn't work unless the tuple is (0,0). Here is a simplified example (it fails to delete anything but the first item):

import ui

class MyTableViewDataSource (object):
    data = [['one','two'],['three','four']]

    def tableview_number_of_sections(self, tableview):
        return len(self.data)

    def tableview_number_of_rows(self, tableview, section):
        return len(self.data[section])

    def tableview_cell_for_row(self, tableview, section, row):
        cell = ui.TableViewCell()
        cell.text_label.text = self.data[section][row]
        return cell

    def tableview_title_for_header(self, tableview, section):
        return ('Alpha','Beta')[section]

    def tableview_can_delete(self, tableview, section, row):
        return True

    def tableview_delete(self, tableview, section, row):
        del self.data[section][row]
        tableview.delete_rows([(section,row)])
    def tableview_move_row(self, tableview, from_section, from_row, to_section, to_row):
        pass

    def tableview_did_select(self, tableview, section, row):
        pass

    def tableview_did_deselect(self, tableview, section, row):
        pass

    def tableview_title_for_delete_button(self, tableview, section, row):
        return 'Remove'


tab = ui.TableView()
tab.flex = 'WHTBLR'
src = MyTableViewDataSource()
tab.data_source = src
tab.delegate =src

tab.present('sheet')

Oddly, you can delete the last row if you deleted the first row first.....

Looks like you can use reload, rather than delete_rows. No animation, but functional.