Create and format widget set.

def get_widgets(self, duplicates):
        "Create and format widget set."
        widgets = []
        for (img,fp,human_readable_label) in self._all_images[:self._batch_size]:
            img_widget = self.make_img_widget(img, layout=Layout(height='250px', width='300px'))
            dropdown = self.make_dropdown_widget(description='', options=self._labels, value=human_readable_label,
                                                 file_path=fp, handler=self.relabel, layout=Layout(width='auto'))
            delete_btn = self.make_button_widget('Delete', file_path=fp, handler=self.on_delete)
            widgets.append(self.make_vertical_box([img_widget, dropdown, delete_btn],
                                                  layout=Layout(width='auto', height='300px',
                                                      overflow_x="hidden"), duplicates=duplicates))
            self._batch.append((img_widget, delete_btn, fp))
        return widgets