Add PowerPoint Chart and Diagram to PPTX using Python

Build your own Python apps to create fully customizable charts in presentation files using server-side APIs. Learn how to add new series and categories to the chart.

Add Pie chart to PPTX Presentation via Python

Pie charts are used to show the part-to-whole relationship in data, especially when the data contains categorical labels with numeric values. Aspose.Slides for Python via .NET provides a powerful API for creating Pie charts in PowerPoint presentations. You can find more information about customizing pie charts using Aspose.Slides for Python API in this link .

The following code sample shows how to create a pie chart in PowerPoint PPTX in Python.
import aspose.slides as slides
import aspose.pydrawing as drawing

# Create presentation (or load existing one) 
with slides.Presentation() as presentation:

    # Access first slide
    slide = presentation.slides[0]

    # Add chart with default data
    chart = slide.shapes.add_chart(slides.charts.ChartType.PIE, 100, 100, 400, 400)

    # Set chart title
    chart.chart_title.add_text_frame_for_overriding("Sample Title")
    chart.chart_title.text_frame_for_overriding.text_frame_format.center_text = slides.NullableBool(True)
    chart.chart_title.height = 20
    chart.has_title = True

    # Set first series to show values
    chart.chart_data.series[0].labels.default_data_label_format.show_value = True

    # Set the index of chart data sheet
    defaultWorksheetIndex = 0

    # Get the chart data worksheet
    fact = chart.chart_data.chart_data_workbook

    # Delete default generated series and categories
    chart.chart_data.series.clear()
    chart.chart_data.categories.clear()

    # Add new categories
    chart.chart_data.categories.add(fact.get_cell(0, 1, 0, "First Qtr"))
    chart.chart_data.categories.add(fact.get_cell(0, 2, 0, "2nd Qtr"))
    chart.chart_data.categories.add(fact.get_cell(0, 3, 0, "3rd Qtr"))

    # Add new series
    series = chart.chart_data.series.add(fact.get_cell(0, 0, 1, "Series 1"), chart.type)

    # Populate series data
    series.data_points.add_data_point_for_pie_series(fact.get_cell(defaultWorksheetIndex, 1, 1, 20))
    series.data_points.add_data_point_for_pie_series(fact.get_cell(defaultWorksheetIndex, 2, 1, 50))
    series.data_points.add_data_point_for_pie_series(fact.get_cell(defaultWorksheetIndex, 3, 1, 30))

    # Add new points and set sector color
    chart.chart_data.series_groups[0].is_color_varied = True

    point = series.data_points[0]
    point.format.fill.fill_type = slides.FillType.SOLID
    point.format.fill.solid_fill_color.color = drawing.Color.orange

    # Set sector border
    point.format.line.fill_format.fill_type = slides.FillType.SOLID
    point.format.line.fill_format.solid_fill_color.color = drawing.Color.gray
    point.format.line.width = 3.0


    point1 = series.data_points[1]
    point1.format.fill.fill_type = slides.FillType.SOLID
    point1.format.fill.solid_fill_color.color = drawing.Color.blue_violet

    # Set sector border
    point1.format.line.fill_format.fill_type = slides.FillType.SOLID
    point1.format.line.fill_format.solid_fill_color.color = drawing.Color.blue
    point1.format.line.width = 3.0
    # point1.format.line.style = slides.LineStyle.SINGLE
    # point1.format.line.dash_style = slides.LineDashStyle.LARGE_DASH_DOT

    point2 = series.data_points[2]
    point2.format.fill.fill_type = slides.FillType.SOLID
    point2.format.fill.solid_fill_color.color = drawing.Color.yellow_green

    # Set sector border
    point2.format.line.fill_format.fill_type = slides.FillType.SOLID
    point2.format.line.fill_format.solid_fill_color.color = drawing.Color.red
    point2.format.line.width = 2.0
    # point2.format.line.style = slides.LineStyle.THIN_THIN
    # point2.format.line.dash_style = slides.LineDashStyle.LARGE_DASH_DOT_DOT

    # Create custom labels for each of categories for new series
    lbl1 = series.data_points[0].label

    # lbl.show_category_name = True
    lbl1.data_label_format.show_value = True

    lbl2 = series.data_points[1].label
    lbl2.data_label_format.show_value = True
    lbl2.data_label_format.show_legend_key = True
    lbl2.data_label_format.show_percentage = True

    lbl3 = series.data_points[2].label
    lbl3.data_label_format.show_series_name = True
    lbl3.data_label_format.show_percentage = True

    # Show leader lines for chart
    # series.labels.default_data_label_format.show_leader_lines = True

    # Set rotation angle for pie chart sectors
    chart.chart_data.series_groups[0].first_slice_angle = 180

    # Save presentation
    presentation.save("pie-chart.pptx", slides.export.SaveFormat.PPTX)

How to Create and customize Pie chart in PPTX via Python

These are the steps to add Pie chart to PPTX files.

First, create an instance of the PPTX Presentation class.
Add a Pie chart with default data using add_chart(…) method.
Configure the necessary properties of the Pie chart (Set chart title, modify the chart data, Apply formatting to series and categories)
Save result in PPTX format

Online PPTX Create Charts Live Demos

Create Charts online

Other Supported Formats

Using Python, You can also add charts to the following formats:

PPT