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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def next_row(self):
 """Select next row in list widget."""

        if self.mode == self.SYMBOL_MODE:
            self.select_row(+1)
            return
        next_row = self.current_row() + 1
        if next_row < self.count():
            if '</b></big><br>' in self.list.item(next_row).text():
                # Select the next next row, the one following is a title
                self.select_row(+2)
            else:
                self.select_row(+1)