ChartDataLabel.left_mode property. Gets or sets the interpretation mode of the [ChartDataLabel.left](../left/) property value: whether it sets the location of the data label from the left edge of the chart of from the position specified by its [ChartDataLabel.position](../position/) property....ChartDataLabel.left_mode property. Gets or sets the interpretation mode of the [ChartDataLabel.left](../left/) property value: whether it sets the location of the data label from the left edge of the chart of from the position specified by its [ChartDataLabel.position](../position/) property.